"eat pant" is a bootleg version of Bart Simpsons from "The Simpsons" catchphrase which is "Eat my shorts!" The words come from a birthday cake which had a poorly made image of Bart next to the text which was spelt like "eAT PANT"
by Reidling123 August 26, 2023

by ButterPasser420 June 10, 2014

by gay-er-son June 12, 2022

The extreme version of "Liar liar pants on fire". When someone has no credibility left because they've told so many lies. A person with ash pants has had them "on fire" so many times that their credibility has been metaphorically turned to ash, and nothing they say can be relied on.
by Brickdictionary118 October 23, 2016
