Urban Dictionary.

A site with stuff made by users, mostly references to porn and swear words because most of the people who use it are edgy 9-year-olds.

Guy 1: I use an urban dictionary.
Guy 2: Do you?
Guy 1: Yes.
Guy 2: Kill yourself, worthless bitch, absolute retarded fucking faggot, absolute piece of shit, absolute dumbass nigger, absolute cunt fucker.