List of running gags

Mistaking Doofenshmirtz for a pharmacist

 * Leni (Suddenly Leni)


 * T.J. (The Beautiful Doll)


 * Charlie Brown (The Beautiful Doll)


 * Lucy (Thanksgiving)


 * SpongeBob (The Holiday Fun)

This Whomps

 * Haiku (The Fan Girls)
 * Timmy (The Date)
 * Schroeder (New Year's TV Time)

Patricia

 * Schroeder (Main character to say it)
 * Spinelli (New Year's TV Time)

Roasts

 * The Fan Girls

Leni's Relationship With Her Dad

 * The Beautiful Doll
 * Valentine's Day Delivery