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1.
Slang for the headcrabs in Half Life 1 and Half Life 2.
Headcrabs latch onto the victims head and turn him/her into a zombie, hence the name headhumper
"Look out, headhumpers!"
by lawzer February 07, 2005
51 11
 
2.
Headhumper is another word for the famous Half Life's Headcrabs.
"Get that figgin head humper off o me!"
by Adam Sklar April 04, 2009
7 2
 
3.
those things in mario bros. in the ocean that hump ur head.....
the headhumpers are coming! swim! swim!
by kim January 20, 2004
5 41