look up any word, like swag:
 
1.
A derogatory term for a faggot.
Jessis told me she tried to fuck Stoney last night, but it turns out he is not into chicks. He is a fucking knob swallower!
by QPump August 04, 2011
 
2.
Someone who really pisses you off. Undertakes homo activites.
Adam: "Jonny shagged Paul's missus last night!"

Steve: "He's a fuckin' knob Swallower!"
by BallBagBob August 30, 2009
 
3.
A person who partakes in the act of cock inhalation (aka "a cocksucker")
that fuckwit is such a knobswallower!
by mudbuttonluver April 24, 2009