Top Definition
Simply translated as "My cello", Mon Cello refers to an anal gas leak characterised by a long, deep resonation with a slight rising pitch. The term derives from the uncanny resemblence to the sound of a cello being played slowly and with a single, deep note.
"Oh my God! What was that noise?"
"That, my friend, was Mon Cello"
by Thandroo October 05, 2011
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