(n) sick fuck who gets off on little children
The Dude: Fuckin' Quintana... that creep can roll, man.
Walter Sobchak: Yeah, but he's a pervert, Dude.
The Dude: Yeah.
Walter Sobchak: No, he's a sex offender. With a record. He served 6 months in Chino for exposing himself to an eight year old.
The Dude: Oh!
Walter Sobchak: When he moved to Hollywood he had to go door to door to tell everyone he was a pederass.
Donny: What's a... pederass, Walter?
Walter Sobchak: Shut the fuck up, Donny.