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A smelly tong is a tong that has been through a series of crappy events. This is often screamed out of the window as a profanity, or One would call themselves a smelly tong when handling their own poo!

A smelly tong is someone's dirty digits. Typically a "smelly tong" would consist of your thumb and index finger, both which have been shoved inside of your crack so that you can savor your flavor.
Ex: Smelly TONG!

Ex: Smelly Tong, you've done wrong.
by Turkey D November 13, 2010