The act of a woman (or man) giving a black man a blowjob, then, right before climax, starts to suck his balls until they become swollen and his scrotum fills with excess sperm.
Guy #1: Bro my nuts are so swollen from the big black bean i just got from my girl

Guy #2: I just got the same from my man bro.
by Jerrys1269 March 20, 2017
Get the big black bean mug.
A big black clirotis, or a triple B.
"Ohhh- weee look at that big black bean, smashin up against her panties! It's makin love juices. Thang phat as hell, finna drench her undies or bust out!"
by atm TJ July 31, 2019
Get the big black bean mug.