emissions test 

the process of sticking your bare ass in front of one's face, then blowing hard ass into their mouth; if they throw up immediately then it was an excellent fart, if they don't then they get to pinch a loaf into your mouth

my friend challenged me to an emissions test in which he lost, so i got to drop a foot long deuce into his mouth

emissions test by wes April 30, 2005

pop n fresh emissions test

Practical joke of choice for pranksters who are frequently spied upon. The prankster creates an elaborate distraction for the voyeur, while he has an accomplice (usually a butler) sneak behind the victim's car and lodge canned cookie dough into the tailpipe.

This will cause the emissions to back up and damage the vehicle, rendering in inoperable, ideally in an isolated location such as nearby an empty field. Other effects of the prank can be considered a bonus, such as if the cumulative pressure of the exhaust expels the dough like a cannon. The best case scenario is when the dough has been expelled and is discovered to have baked to perfection. The prankster and the victim may then enjoy the product together, assuming the two are on sufficiently amicable terms.

shit dawg lets see how he likes a pop n fresh emissions test all up in his new ride!!!

pop n fresh emissions test by [zz] February 7, 2009

emissions testing 

When you take a hose, attach it to a car's exhaust, put the hose into your anus, then place a heavy object (cinderblock) onto the gas pedal and prepare to die.

"Did you hear what happened to Harvey last night ?"
"No, what happened?"
"Dat nigga went through emissions testing"

emissions testing by DumbshitMcgee69 February 14, 2018