Why a Buff? I think thats a pretty classic one. Straight from Style Wars, it gets no better. Song lyrics from dope artists are sometimes the way to go too.
I like to put curse words in bathrooms when I'm using DED, Garvey, or my own ink. It's so funny to see them try and buff it saying "Hurry up, I don't want anyone to see this and complain." They get so mad when they can't buff it.