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To slap someone with your erect penis, usually in the face.
My bitch was giving me a terrible blowjob so I had to cockswat her.
by Chama Pakalolo February 03, 2009
a word coined by a washington resident, a more exreme or serious version of a cock block.
guy:so what are you doing later?
girl: well umm
cock swatter: hey dude, did you ever find out if you got her pregnant?!
girl: i gotta go
guy to swatter: dick.
by ceddycedced June 16, 2010