Definitions by Tonto_89

murder boner 

Etymology of the word Murderboner: The name dates back to circa 800 AD when hoards of Vikings pillaged new lands. Observers of Viking raids told huge erections achieved by the warriors after killing a victim.

Alternative meaning: what your dick looks like after having sex with a girl on her period.

As he pulls out... he looks down and sees blood, SHIT Murder boner.

murder boner by Tonto_89 September 18, 2016