The thighs of a curvy voluptuous woman, famous in the 70s and early 80s period which adds a seductive, sensual appeal to the whole persona of the woman; unlike a skinny, lean pair of legs so much in fashion and so desired now.
Wow! Check out the thunderthighs on that woman, makes me want to make sweet love to her all nightlong.
n. A person who is so overweight that one's thighs rub together when he/she walks and creates a low rumbling noisedeep within the earth whenever he/she steps.
Holy christ! Here comes thunderthighs! Hold onto something! Brace yourselves!! *BOOM* (low rumbling noise)
This word is used to describe a really fat person. A thunderthighs person have really big thighs, make loud farts, constipate, and eat a lot. A thunderthighs person also annoys people a lot. A thuderthighs person also brags and has no sportsmanship. This is my message to you: Don't be a thunde-rthighs person because a thunderthighs human is an annoying bastard.