A violent sexual act between a male and a female whereby the male places his arm around the head of the female, shapes his fingers into bird or sock puppet like manner, inserts his hand or “Bird” into the naughty bit of the female and finally knees his elbow ferociously to induce a hammer effect.

Whilst the bird hammer has come into trend in the recent years many believe it originates from Auguste Rodin’s “The Thinker”.
“Yo, dog what’s the go with that girl you’re dating?” “G-unit, I can’t take her seriously I bird hammered her on the second date..” *Lolz* *Hi 5*

“I can’t believe she dumped you!” “Don’t worry, I gave her the bird hammered her throughout the breakup sex” *Lolz* *Hi 5*
by Robbie Blaze August 22, 2011
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