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When a male is skined and made into a bra for a wench he loves.

Just kidding.

Er, it is when a guy supports a females breasts. Of course, more groping occurs than support...
"He's my man bitch AND my human bra!"
by Astrakhan April 06, 2003
a guy using his hands as a bra well for a girl.
"Can i b your human bra?"