Top Definition
The filthiest of all nightclubbers. These low life, oxygen thieves can be found in the corners ofdark, humid, drug filled, sweaty-cock-smelling clubs of the late night entertainment district. This breed of scum, are generally identified by the lack of a 23rd chromosone, fluro attire, immense amounts of sweat, and are often seen chewing on their own cheeks due to a high intake of illicit drugs. Female mono rats are also reffered to as cumdumpsters. Originated in Australia.
Nick: Oh why are mono rats here?
Mike: Fucks me but lets get out of here, they smell like a used condom.
by Olive-leaf March 26, 2008

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