Hairy, Breast-like growths that develop on men. Attributed to massive over-eating (being a fat bastard) can also be caused by drinking tap water laced with oestrogen.
Can be seen at the beach and the swimming pool. Usually accompanied by double chin, beer gut and sweaty pits.
Brawnbies play an vital role in the truffle shuffle
"Wow! that guy's brawnbies are huge"
"Wish I had brawnbies like that"
"Would you like to have a feel of my brawnbies?"
"Cover up your brawnbies dear, this is a family restaurant"

by Jimstock January 19, 2006
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