"THUNDER THIGHS" are a fat girls thighs that are so humoungous, big & fat that they clap together when they walk. This produces a loud noise which goes like "SLAP, SLAP, SLAP" , hence the "thunder" part of the word.Also causes earthquakes,volcanic eruptions,and tsunamis from just one clap.So make sure you stay away.People have been know to wander near the thighs and never seen or heard of again.EVER
by Chinfu December 25, 2014

by phineasfuk August 25, 2006

a girl with EXTREMLY big thighs
wears tight skinny jeans to make her legs look small(doesn't work)
walks around like shes big
makes fun of people she thinks is "ugly" even though this girl is FUUGGLLYY!
wears tight skinny jeans to make her legs look small(doesn't work)
walks around like shes big
makes fun of people she thinks is "ugly" even though this girl is FUUGGLLYY!
by Le infamous March 12, 2009

by sebastian February 18, 2004

by brother to gf of stoner May 13, 2005

I was sitting on the other side and could see all the way up the skirt, right to her thigh pasty.
Wouldn't mind a taste of her thigh pasty.
Wouldn't mind a taste of her thigh pasty.
by The Gerk September 23, 2009

Meredith: I tried on those abercrombie shorts you bought me
Cali: Did they fit?
Meredith: No. Major thigh refusal
Cali: Did they fit?
Meredith: No. Major thigh refusal
by AMAROK October 18, 2008
