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A blood donger is a man who enjoys blood donging, which is the act of having intercourse with a girl on her period.
"My boi rankled hisself summa dat Emily last night"Dude 1
"I heard that girl was on her period!?" Dude 2
"Homeboi that don't matter, my boi loves blood donging" Dude 1
"What a blood donger!" Dude 2
by TheBloodDonger January 16, 2012