look up any word, like sex:
 
8.
Hammer head is someone who uses heroin and shoots up a lot, or likes to chase the dragon.
person 1: hey wanna buy some smack?
person 2: nah mate i'm not a hammer head
by calais kid November 16, 2009
14 15
 
9.
1.The result of generations of inbreeding. The eyes have spread apart resembling a hammerhead shark. This is to adapt to the the hostile environment of an incestuous household by allowing the hammerhead to see their father stalking his prey .

2.When a hammerhead sucks you off and begins to spas out vigorously slamming her enormous forehead onto the head of your dong.
"who invited the hammerhead to the party! She pissed herself on the bed and smeared shit all over the bathroom floor."

"that fat slut made my cock piss in two streams from her hammerhead."
by pete burns September 15, 2007
11 13
 
10.
A girl lays on a bed legs spread, vigorously double fisting her vagina, while a guy stands at the far corner of the room and he is bending over. He places his hands on his head thus imitating the dorsal fin of a shark. He charges forward toward his pray and plows that pussy into oblivion with his head creating the image of the elusive hammerhead shark.
Wow my vagina hurts. WHY? My boyfriend hammerheaded me several times yesterday.
by B2daALLZ September 01, 2006
103 105
 
11.
Strong Marijuana grown at home - especially in Bristol, UK
"Man this hammerhead is.... what was I saying?"
by snorker Major June 29, 2013
1 4
 
12.
An evolution of the turtlehead. A hammerhead occurs when the turtles head is squashed between your butt cheeks into a boomerang style shape not disimilar to the head of the afformentioned hammerhead shark.
Reg was taking a dump when the fire alarm went off. He jumped to his feet, buttocks tensed and then realised he had given himself a massive hammerhead.
by craftyscouser March 21, 2011
1 4
 
13.
The name for what your penis looks like when only the head of the penis fills with blood and you don't actually have an erection. It could happen when sitting down and then standing up quickly or anytime.
I was sleeping and right when I woke up and headed for the bathroom I noticed my hammerhead
by jive robots November 02, 2010
4 7
 
14.
Another word for a good looking girl.

ie: biddy

pronounced *ham*-*ah*-*head*
"Check out the tatties on that hammerhead!"
by TheFirstDoc September 12, 2009
11 14