
A major aspect of the show is the characteristic catchphrases of the characters. Such phrases are spoken multiple times, some more frequently, while others more seldom. They are listed here by their most oftenly associated character.
Recurring quotes not explicitly linked to a single character constitute running gags and should not be noted here. Other popular excerpts heard once throughout the series should be recorded in the Memorable Quotes sections of the episode articles.
Phineas Flynn[]
- "Ferb, I know what we're gonna do today!" (Also said by other characters.)
- "Hey, where's Perry?" (Also said by other characters.)
- "The best (something) ever!"
- (Usually after someone says, isn't he too young to be doing something...) "Yes, yes I am", and sometimes "No..." and "Well, I don't think so..." (Also said by others.)
- "He's just a platypus; they don't do much."
- "Oh, there you are, Perry." (Also said by others.)
- "How serendipitous."
- (Normally after Isabella asks "Whatcha doin?") "We're building a...", "We're making a...", or "We're...", or "Ferb and I are..."
- "Well, that can't be good."
- "That's so cool!"
- "I like to keep moving forward."
- "Seize the day."
- "Let's (something) this baby up."
- "Whatcha doin?" (sometimes)
- "Ladies and gentlemen, I give you ..."
- "That's what I'm talking about!"
Ferb Fletcher[]
- "Actually, I..."
- "Platypuses ARE the only mammals to lay eggs."
- "Well, that was completely out of character."
- "What did I miss?"
- (Thumbs up)
Candace Flynn[]
- "You're goin' down!"
- "PHINEAS!"
- "MOM!"
- "Mom, look!"
- "Phineas and Ferb/the boys are/have making/building/made/built a/an (insert invention's name)!"
- "I'm in charge"!
- "He's right behind me, isn't he?"
- "B-b-b-but..."
- "You (guys/two) are so busted!"
- "Candace is out. PEACE!" (Also said by other characters).
- (Giggling maniacally like "Ee-ee-ee-ee" or "Hehehehehehehehehe" or less often "Heh heh heh heh")
- "Oh. Hi, Jeremy."
- "Oh. Hi, Stacy".
- "See?!!"
- "It's right here/there!"
- "(But) It was right here!"
- "What?!?"
- "Come on!"
- "Hurry!"
- "You missed it."
- "You've got to see what Phineas and Ferb are doing!"
- "Jeremy?"
- "MY PHONE!!!"
- "How many times have I told you to keep Perry out of my (insert position/action here)?!"
- "Really?!"
Linda Flynn-Fletcher[]
- "Candace?"
- "Hi, boys!"
- "What am I looking at?"
- "Who wants snacks?"
- "Who wants pie?"
- "What is it you wanted to show me?"
- "Come help me with the groceries."
- "Alright, Candace..."
- "Aww, that's so sweet."
- "Such imaginations."
- (scoffs) "Teenagers..."
- "I have/got frozens."
Heinz Doofenshmirtz[]
- "Curse you, Perry the Platypus!"
- "Behold! The (insert name)-inator!"
- "Ah/Oh, Perry the Platypus, (adjective). And by (adjective), I mean COMPLETELY (adjective without prefix)!"
- "Well, well, well..."
- "I think it's best expressed in song form/in a song."
- "You wanna know/wonder why I want to (plan an evil scheme)? Backstory time!/Back in Gimmelshtump...".
- "That is so evil!"
- "In retrospect..."
- "Backstory!"
- "A platypus? (Perry puts on his hat) Perry the Platypus?!"
- "THE ENTIRE TRI-STATE AREA!"
- "Oh... poo."
- "Ah, Perry the Platypus, you're just in time... to be trapped." (Trap comes)
- "It's working! It's functioning properly!" (Also used by Candace in "The Mom Attractor")
- "You know what they say, (nonsense saying that expresses what is happening in that moment)."
- "Hey, is that (insert band)?"
Francis Monogram[]
- "Monogram out!"
- "Great Googly-Moogly!"
- "Doofenshmirtz has been seen doing...."
- "(Good) Morning, Agent P."
- "Good luck, Agent P."
- "Carl!"
- "Get over it."
- "It seems like a recipe for evil..."
- "The Academy..."
- "Get to the bottom of it."
Carl Karl[]
- "Sorry, sir."
- "Yes, sir."
- "Right away, sir."
- "Ok, Agent P."
- "You fool!" ("Where's Perry?" only)
Isabella Garcia-Shapiro[]
- "What'cha Doin'?" (Also said by Phineas, Buford, Candace, Baljeet, and Suzy among others)
- "Okay, girls."
- "We need the (title of accomplishment patch) patch."
- "Oh, Phineas!"
- "Hey, Phineas!"
- "Hey, where's Pinky?"
- "Fireside Girls, report!"
Buford Van Stomm[]
- "Buford loves (insert thing)!"
- "Hello, Dinnerbell."
- "Witchcraft!!"
- "I'm out of here."
- "Lame!"
- "I'm so in love with her right now."
- "Bread bowl hot tub!"
Baljeet Tjinder[]
- "Aaah!"
- "Buddies..."
- "Hello, my friends."
- (not using contractions)
- "Boy howdy!"
Jeremy Johnson[]
- "Hey!"
- "Candace?"
- "Cool."
- "That's my girl."
- "Holy guacamole. You sure are a handful." ("Ferb TV" only)
Albert Du Bois[]
- "As it should... a be."
Stacy Hirano[]
- "(Someone) wrote that (someone) has said that (someone)..."
- (When someone says that she is a genius) "Could you call my mom and tell her that...?"
Vanessa Doofenshmirtz[]
- "Whatever."
- "Busted!"
- "Dad?"
Lawrence Fletcher[]
- "Wahoo!"
- "Hello, boys."
Bob Webber[]
- (Snaps fingers) "Okay!"
Danny[]
- "Yeah!"
Norm[]
- "Hi, I'm Norm."/"My name is Norm."
- "The enemy of platypus is man."
- "Please, sir!"
- "I'm sorry, sir."
- "It's muffin time, sir!"
Mr. Doofenshmirtz[]
- "Bewege dich nicht!" (German for “Don’t move!”)
Suzy Johnson[]
- "Bubbles!"
- "I am, and always will be, Jeremy's favorite girl."
- "Splishy splashy!"
Roger Doofenshmirtz[]
- "Oh, Heinz..."
- "Hello, Heinz."
Meap[]
- "Meap."
Khaka Peü Peü[]
- "Thank you very much!"
Lyla Lolliberry[]
- "Eh?"
- "Soorry."
Professor Mystery[]
- "Mystery is my allure."