1. A fat person whose thumbs are abnormally bloated and chunky.
2. One whose thumbs have become large and muscular from frequent thumb wrestling or text messaging.
2. One whose thumbs have become large and muscular from frequent thumb wrestling or text messaging.
1. When that porker over there grabbed my arm, I could feel her thunder thumbs crushing my bones. Oh the humanity!
2. Yeah, just try to beat Old Thunder Thumbs over there in a Thumb Wrestle. Just don't come crying to me when he breaks it! He'll lay the Opposable Smack Down on you!
2. Yeah, just try to beat Old Thunder Thumbs over there in a Thumb Wrestle. Just don't come crying to me when he breaks it! He'll lay the Opposable Smack Down on you!
by A Fizzle Dizzle August 20, 2008
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When someone sticks their thumb backwards in your butthole and they fart on your thumb...thus the thunder sound.
by Sexy Angel 6969 April 22, 2009
Get the Backwards thunderthumb mug.thunderthumbing the art of scwhhhiiiinging ur thumb in a crane like manner directly aimed at ur partners bum bum hole to create panic and disturbance hahahaha
by trixta74 December 10, 2016
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