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3.
verb: To fall backwards, to unintentionally lose balance and roll.
"Did Jon just timble off the couch?"
by Cool Guy March 01, 2004
 
1.
A beer mug size thimble used for midgets to get drunk.
Danny had two timbles of beer and passed out
by Howie Toddler July 19, 2010
 
2.
A guy who's got fingers that are all like pointy and touchy and like to pick at other people's clothing and stuff.
Dude why are you pulling my drawstrings. You're being like Timble.
by Nabel (happy?) December 23, 2009