Tuff Gum

Tuff Gum ("for guys who can't spell") is a jingle song from "Suddenly Suzy".

Lyrics
Pound nerds like a drum

Stop a train with your thumb

It's Tuff Gum!

Phineas: Wow, Can I have some?

Buford: ''Nah, I don't think so. It's for bullies only.''

Phineas: Hey Ferb, you got any regular gum?

Regular gum!

Background Information

 * The teen who is beating up the boy is the "local bully" that almost eats Biff in "Voyage to the Bottom of Buford" Evidently, he buys Tuff Gum.
 * The logo for Tuff Gum is similar in appearance to the Pokemon Geodude.
 * Tuff Gum is mentioned in "Boys Interrupted".