One who knocks on the door like an asshole.
Guy 1: Who the fucks knocking on the door!?

Guy 2: It's me jackass!

Guy 1: Why are pounding on the door like your the police assknock!?

Guy 2: Cause my names Kevin Grace bitch, let's go hit the bong.
by Hell Yeah Aaron August 20, 2009
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(noun): The act of engaging in anal intercourse or other forms of faggotry involving the anus.
John is such an assknocker! He pounded James in the pooper until he shit blood.
by Skygod74 September 11, 2007
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