Definitions by Buttmilk

Menstruatio 

a blowjob from a woman who is on a period and therefor cannot fuck. Offered as a consolation prize.

See fellatio

Gregory: Last night I was hooking up with Naomi and we were going to fuck, but she was on her period. She gave me head though...

Nathanial: Ah, the old consolation prize, menstruatio. Hey, at least you got yours.

Menstruatio by Buttmilk February 22, 2011