The act of using a woman's menstral blood from her vagina as lube for anal sex.
Darcy was on her period, so i blood lubed her ass doggie style.
by Karsen June 28, 2007
The superior lube, cheapest and most effective lube. Usually acquired after "anal ravage".
Instead of buying lube I usually go med-evil on her ass till blood lube is acquired.
by BLB1990 February 28, 2011