enourmously huge thighs, usually matched with huge slabs of fat falling over them.
Dude that chick has major thunder thighs....i could climb into one and live
by Chelli September 12, 2004
Get the thunder thighs mug.
Basically, you have normal thighs, then they get fat (tier 1). But when they get like even fatter, you get another level of fat like a hill of fat(tier 2), which is loose off the other fat so when a thunder thigh is being walked besides the legs (tier 1) rubbing against eachother they (tier 2) hit eachother making a noise, hence thunder coming into the expression, most likely to because of alliteration for a dramatic, comedic affect. This sound can have a brighter tone and richer feel if accentuated with bumpy cellulite
Damn, those thunder thigs are so massive it looks like shes got a second arse

It's like someones stuck balloons in those thunder tighs

No, no....come on, this cant be real, that girls got thunder thighs ripping out like the hulk
by F-Laboyrie May 31, 2007
Get the thunder thighs mug.
A man or women that has massive thighs and legs that look fat, possibly disproportionate to the rest of their body.
Look at those woman's legs, she has thunder thighs
by D_masters June 10, 2012
Get the thunder thighs mug.
When a person's thighs are so large, they clap like thunder.
Did you see that girl's hips? Damn she's got some thunder thighs.
by hKbA October 17, 2010
Get the Thunder thighs mug.
When a girl has enormous thighs that make you waddle when you walk.They rub up against each other and make a slapping noise when walking
Damn that girl Krystin got some thunder thighs on her.
by Melissa Sanderzzz June 6, 2007
Get the Thunder Thighs mug.
when a chick's booty is so fat her thighs look like canons of muscle that could choke a horse. men are initially attracted because of the hourglass effect but once she gets naked you realize you're really just having sex with an enormous woman.
chick thinks she's hot but truth is no one wants those 50 pound thunder thighs. god damn woman put down the chicken wings and eat a salad.
by summer_ass_cheese August 29, 2022
Get the thunder thighs mug.
a word used when a female has large thighs.
damn those are some big ass thunder thighs .
by big booty hoeez May 5, 2016
Get the thunder thighs mug.