A penis covered in post-anal sex excrement. (Usually sucked immediately afterwords)
After i fucked her ass, sally sucked my rotten banana.
by BlumpKING July 30, 2004
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1; a lazy ugly guy or women that just sits on it's ass all day and bitches at random people.
2; a brown or black with yellow banana
look at that rotten banana sitting on that ugly couch
by buttcrackeater July 12, 2011
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the opposite of cool bananas, the phrase is said to have developed in scotland similair to cool bananas and has a link to the east coast, a student who usually used the term cool bananas expressed dissapointment and lost for words said rotten bananas and the phrase has spread since. rotten bananas is said when something is not cool, bad news has occured, or dissapointment has happend.
I could not get us tickets to the concert
"awww thats rotten bananas"

My hen just ran away
"unlucky man thats rotten bananas"
by freud guru December 29, 2010
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A woman who is unaware of her twat smelling like a rotten banana or rotting fish mixed with piss.
"See the blonde hair blue eyes over across the way?"
"Yeah, why is she alone?"
"It's probably the aroma of her smelling like a rotten banana fish in between her legs."
by Divinecomedy August 14, 2014
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hey girl, want some more of that rotten banana i stuck inside your ear last night?
by forcedanal February 20, 2017
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