A thut is an
unfortunate condition where a the back of a woman's thigh and her butt have become a single entity. There is no sudden incline
from the back of the thigh to the farthest part of the butt and it becomes more of a slope.
It's caused by a lack of glute muscles.
It's a treatable condition, it is
generally cured by squats and other glute exercises.
You can figure out if you have a thut by putting a pencil between where your butt ends and your thigh begins. Stand straight and somewhat tighten your glute muscles. If the pencil falls you're safe. If it stays...I'm sad to inform you that you have a thut.
"She was
wearing a bikini, and it would have looked good if she didn't have a major thut."
"I used to be so hot, until I got a thut."
"
Look at her thut, she really needs to
get off her ass"