Top Definition
A "friend" who you see as nothing but an easy fuck!
Andrew: "Hey Devon, what's up with you and that girl from the club"

Devon: "Oh Lisa? Yeah we cool, she's just my smashdog ya know?
by B from Valley October 16, 2008
when a man is having sex with a woman then he pulls out and smashes his dick with a hammer
yesterday, i smash dogged myself when i was banging my girlfriend
by ricky flanders October 29, 2010
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