Top Definition
A killer cockroach's giant killer penis. From the Latin origin blattamentula (roachpenis).
Guy: There was a roach in my bed this morning when I woke up so I fumigated my room and gave myself an enema.
Gal: Why an enema?
Guy: The cockeroach raped me with his giant roachcock!
by Moosaka The Horrible July 29, 2008
6 Words related to Roachcock

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