assblast 

1. When you have to take a shit really bad and it comes out as a runny burst.

2. Having sex with someone in the anus and having a lot of fun in the process.

1. That asshole Matt left an assblast all over my toilet!

2. We had a real assblast at the party last night. Matt's ass is going to be sore for a week!

assblast by Frank Enbeens May 27, 2007

assblast 

A loud, odiferous, noxious, and entirely pleasing emission of gases and various chemicals and excreta from one's nether gate.

I gave a satisfying assblast in the crowded elevator and caused a panic between floors 11 and 14.

assblast by Flesticle N. Bumptious January 13, 2008

Assblast 

A 3rd-coast based project putting free bicycles back on the road with a rat-rod mentality and no thought given to comfort. Assblast was originally just the name of the initial bicycle (now named "ANAL FIESTA I"), and was given to the bicycle due to the fact that with no rear tire that shit really hurts one's ass who so choses to blast that bitch down the road.

Assblast projects include =

DUALLY SCOOTER (done but broken)
AF I (incomplete)
PROJECT SAILBOARD (on hold)
LITTLE RED CORVETTE (incomplete)
SCREAMIN SEMEN (waiting for a tire)
AF IV (super dangerous)

Assblast by ANALFIESTA June 18, 2014

assblast 

a term used when a sudden overload of information or emotion is brought upon you usually very unpleasant or unexpected.

Person1: "When I watched clannad, I wasn't expecting to get assblasted with depression"
Person2: "When I watched MHA, I wasn't expecting to get assblasted with a stupid ass fandom"

assblast by Clable October 14, 2021

assblast 

When drilling a girl in the ass and finally releasing, if you wait 5 minutes she will perform an ass blast covering any and all substances around with cum and shit.

I kicked that bitch in her stupid face because she assblasted me.

assblast by Henry Wrinkler April 18, 2003

assblast 

when a bird gets spooked and ejects its tail feathers

oh my god, that bird just had an ASSBLAST !

assblast by Child_of_Thor May 13, 2020

Assblast 

When a guy hits the sweet spot of someone's ass when he's fucking them (in the ass) and cums at the same time, causing a devastating orgasm

What are you gonna do to me?
First, imma blow you. Then, I Assblast you. You're in for it bitch

Assblast by Turtilator200 August 3, 2016