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Grundy Thundy 

When you bang a fat chick and your scrotom slaps against her thighs with a furious bang.
Will was going so ham on Mrs. Vincent that the Grundy Thundy could be heard from miles away.
Grundy Thundy by Gooch master December 23, 2013
Related Words
thunny thinny thunky Thanny trunny Thunne Tunny Thdunny thonny thaunny
It is a mixture between thin and skinny. A female with no breast, butt or curves. Unattractive probably anorexic. Is the opposite of thick when referring to a female.
"That girl is thinny she's got nothing on Sara" "Yeah man, Sara is thick."
Thinny by Alism95 March 31, 2017
A skinny person who has a nice body. Has all the nice features as thicc girl do, but is skinny.
You saw the girl that just passed by she was thinny and cute asf.

I need a thinny girl
Thinny by Delightfol February 28, 2018
a definition that is a combination of thick and chunky. It could either describe some European woman who is obese, or a fat person who bitches about her weight, and makes excuses denying the validity in it. Or she affirms it in a mild twisted way.
Am I thunky? OR I am thunky, tyvm.
thunky by balancedmedium September 26, 2009
Trunny is a combination of true and funny and works as a replacement for "It's funny because it's true."

Trunny story!
Gosh! When I saw Victoria pass by my zipper broke! Trunny story!
trunny by EVD October 16, 2012
Characterised by fruitless one-upsmanship, such as that between Donald Trump and Kim Jong Un
I’m going home - don’t have time for another trunny conversation with my boss!
Trunny by Brownfunk September 25, 2017