Thunder Grundle 

During a fart, when air is compressed between the grundle and a hard surface- the air erupts to the nearest exit, usually out the front of the crotch. It is thunderous, not just for the thunderous noise it makes, but also because of the unsettling direction of the blow.

I had a serious thunder grundle in math class, i think i sprained my taint.

Thunder Grundle by ceegee2 January 23, 2013

Thunder-Hips 

A term for one who has great force with their hip-checks.

Man that guys got Thunder-Hips!

Thunder-Hips by EnterEpicNameHere September 1, 2013

Thunder Mallet 

A mentally challenged narcissist with a large penis.

My classmate is a true thunder mallet.

Thunder Mallet by Tinyradman May 26, 2018

thunder sticks 

large, stinky, and long turds

"Dude i just made some thunder sticks in the bathroom"

thunder sticks by noah p m. October 17, 2008

thunder thighs

a girl with perfect hips and thighs and knows how to rock a bikini. Usually has the best body out and goes perfect with abs. Thigh gaps arent even needed if you have thunder thighs, your basically perfect already! be careful not to judge people by this, and dont use it against them.

thunder thighs are the opposite to fat so dont make it out to be

person 1: dayumm girl you got some thunder thighs!

person 2: biggest hottie out

thunder thighs by biggesthottayevahh November 26, 2013

Thunder Bay 

A basic shit hole town in Ontario, where the teenagers - preteens enjoy to smoke the "herb" and drink at schools. Usually in the West fort area. It even has its own street with the lovely hookers n hoes and needles in the back lanes. It consistences of drunk ass guys ridin the bus late at night to pick up the young girls and men.

Yendys: Hey man what are we gonna do in Thunder Bay tonight? probs Westfort though ya know?
Arac: Well my friend fsu and find the machachos smokin and drinkin, those lil rascles in this town eh

Thunder Bay by Pekkka May 29, 2011

thunder thighs

thighs tha are the size of dinner hams that jiggle while you run

damn that girl has thunder thighs..yeah that ones so big i could live of it for a week

thunder thighs by T-MONEY May 1, 2003