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1.
(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.

by Team JPD March 26, 2003
 
2.
Misspelling of "pederast".

A pederast is a man who engages in sexual activity with young boys (i.e., sick bastard)
Jesus Quintana had to go door to door to tell everyone he was a pederast
by eyeheartboobs June 25, 2004
 
3.
an adult who goes with a minor.
From the film "The big lebowski"
jesus quintana, a character from the hit movie "the big lebowski", did time for showing his ass to ten year olds and was therefore described by Walter, john goodman, as a peder-ass.
by jimmy pubeface April 11, 2004
 
4.
Loves little male children. In a sexual way.
Is Santa Claus a pederass?
No, but your dad is.
by sonya November 05, 2003
 
5.
An adult that likes to have sex with children.
The peder-ass down the street was caught trying to lure children to his house on My Space.
by Matthew Sutton June 19, 2006