Top definition
When you gotta take a poo so bad but you aren't anywhere near a legitamate place to go so you hold it in for an hour until you finally get to a toilet and by this time you can hardly wait to get your pants down when it just blows out your ass, and everyone else around you knows exactly what you just did.
Man, they had to repair that toilet in the public 'room after I took that sonic dump last week. I still can't look at Jesse straight after he took one a few months back while I was in with him.
by anonymous December 30, 2004
Get a sonic dump mug for your coworker Sarah.
Jul 22 Word of the Day
Short for ultimate bias. Typically used by fangirls and fanboys to describe their favourite celebrity amongst the many that they are fans of.
G-Dragon is my ult
by Uglycat February 19, 2017
Get the ult neck gaiter and mug.
2
when you take a dump that is so loud and intense you end up with hearing loss or other ear damages.
I took a sonic dump last month and i still cant hear anything out of my right ear!!!
by noshelter September 15, 2004
Get a sonic dump mug for your friend Jovana.