1 definition by John MacPherson

A used in contemporary american youth to describe the mental state when a girl going in and out of consciousness and unable to say no to sexual advances. It is looked down upon to have sex with a girl who is "mixing blood" and is considered a form of date rape.

Comes from when a women is raped and drunk and both menstrual and bodily bloods are mixed during the violent sex.
girl- "Please stop, I'm mixing blood, I don't know what I'm doing!"
boy- "Ok just one sec, i'm almost done"
by John MacPherson November 1, 2010
Get the Mixing Blood mug.