List of running gags

Running gags are jokes or events that are seen throughout the series.

"Whatcha doin'?" said by:

 * Isabella (Main character to say it)
 * Lawrence ("Greece Lightning")
 * Linda ("The Best Lazy Day Ever")
 * Buford ("Out of Toon", "Swiss Family Phineas")
 * Norm ("Hail Doofania!")
 * Phineas ("Run Away Runway", "I Scream, You Scream", "At the Car Wash", "That Sinking Feeling", "Phineas and Ferb's Quantum Boogaloo", "We Call It Maze")
 * Baljeet ("Bowl-R-Ama Drama")
 * Candace ("Phineas and Ferb Christmas Vacation!", "Suddenly Suzy")
 * Suzy ("Suddenly Suzy")

"Where's Perry?" and "Oh, there you are, Perry" said by:

 * Phineas (main character to say it)
 * Irving ("Hide and Seek")
 * Ferb ("Fireside Girl Jamboree")
 * Stacy ("Put That Putter Away")
 * Candace ("Oh, There You Are, Perry", "Phineas and Ferb Hawaiian Vacation")
 * Lawrence ("Comet Kermillian", "Out of Toon", "Tip of the Day", "Swiss Family Phineas")
 * Isabella ("It's About Time!", "Cheer Up Candace", "The Lizard Whisperer")
 * Major Monogram ("Phineas and Ferb-Busters!")
 * Hotel Manager ("Phineas and Ferb Hawaiian Vacation")
 * Chaka Khan ("Phineas and Ferb: Summer Belongs To You")

Episodes that Ferb has been cut off mid-sentence:

 * "Vanessassary Roughness" (We learn Ferb is short for something)
 * "Get That Bigfoot Outa My Face!"
 * "Ready for the Bettys" (repeatedly)
 * "Undercover Carl"

Things that have fallen out of the sky:

 * Miniature golf course ("Put That Putter Away")
 * Steaks ("Comet Kermillian")
 * Rabbits ("Leave the Busting to Us!")
 * The perfect lantern ("Vanessassary Roughness")
 * A van ("Leave the Busting to Us!")
 * A quart of ice cream ("Swiss Family Phineas")
 * A giant present ("Phineas and Ferb Christmas Vacation!")
 * A cat ("saved" by Doof) ("Voyage to the Bottom of Buford")
 * Phineas and Ferb's replica of Niagara Falls ("Suddenly Suzy")

Out, Peace!

 * Candace (main character to say it)
 * Single guy ("Phineas and Ferb Hawaiian Vacation")
 * Dr. Doofenshmirtz ("Nerds of a Feather")