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1.
Possibly the most offensive word in the English language. Pairing up 'Blood' with cunt results in a word so offensive that it should only be used in the most extreme circumstances.
"fucking bloodcunt"
by Les January 12, 2004
 
2.
slang for a women who is on her period.
woman : "why the fuck haven't you done the washing up you bastard...all men are bastards and are useless and the sooner we can impregnate our selfs then men will be wiped out...blah blah blah.."

man : "Shut the fuck up, don't take it out on me just because you are a blood cunt... and i want my fucking dinner NOW bitch."
by tom best August 25, 2008
 
3.
used affectionately by men towards each other
a man could talk to another man and say "alright cunty" or "alright you old blood cunt"
by natalie March 21, 2005