by calais kid November 17, 2009

To grab the shaft of the penis leaving only the head sticking out and slamming the head with an open palm.
by pcstrebel February 03, 2010

a derogatory term for a person of african decent and used in reference to their big, wide lips and the similarity thereto to the wide mouth base of the "Hammer Head Shark". Used by cops in ny/nj.
by HowUDoin336 May 18, 2006

when the foreskin of an uncircumcised penis is stretched forward, then twirled and folded tightly to give the penis the appearance of a hammer head shark
by crocock May 14, 2009

one that hammers quite often. Someone prone to hammering without trying.Can also use the phrase 'hammer head shark' to denote a master of hammering.
by stasis___ January 27, 2007

the term for when a man takes extacy and viagra. the viagra is taken because of the comon erectile disfunction assosiated with MDMA
guy 1: Dude, me and Ashley are gunna do E and im gunna screw her.
guy 2: Dude, that aint gunna work, you need to go Hammer Heading.
guy 2: Dude, that aint gunna work, you need to go Hammer Heading.
by ykwtdtgluip January 11, 2008

KJ: Hey Greame why is ur purp head so big?
Greame Mann: Da Whaaaat?
KJ: Wow that must be a Hammer head.
Greame: FUCK YOU!
Greame Mann: Da Whaaaat?
KJ: Wow that must be a Hammer head.
Greame: FUCK YOU!
by Kyle Joudrey April 24, 2008
