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1.
A slang term for hairy armpits, which originated in forces slang in Germany.
Check the mulberry bush on that (usually a German female)
by Sleepless January 17, 2007
 
2.
The act of a man shaving off his 'fro and gluing it onto a girl's vagina for cushioning during sex.
Tony: Dude what happened to your hair

Leon: I couldn't take it anymore, it was starting to chafe. Had to sacrifice it for a mulberry bush
by Thomas Sugarpike February 21, 2009