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A combination of pubic hair and cotton lint, that becomes intertwined after swamp-butt and walking create optimum conditions.

Not like a dingle berry, whose main component is fecal matter, crusted onto pubic hair(s).

(see dingle berry )
I usually find 2 or 3 tumble bugs in my underpants by the end of the day.
by redrocket84 April 19, 2011
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May 3 Word of the Day
Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)
Monica: Oh yay! I made a new mutual today because we started following & talking to eachother on twitter and we like eachother (so it seems).
by qtheresurrection March 25, 2015
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