Bubblegum Effect

The usage of an unexplained or just flat out dumb lyric in a song which sticks in the listener's mind for the rest of the song, keeping them from paying attention to the rest of the lyrics. As soon as you step on bubblegum, you can't get it off of your shoe, but you always know it's there, and it annoys you for the rest of the day.

Lil Wayne: Weezy F Baby and the "F" is for "Phenomenal!"
will.i.am: Imma work hard, that's my thesis/This beat is a shit, feces
Listener: Dude, as soon as they said that I got seriously bubblegum effected.