An extremely loud that makes your butthole explode and rumble, and when it comes out it sounds like you accidentally stepped on a duck and it screamed. Usually happens when you hold a fart until you can't hold it anymore.
Bruno: *hardly and loudly farts*
Reese: "Yo Bruno, what did ya just step on a duck?!"
Bruno: "Yeah, and it feels like my ass ripped in half."
Reese: "Pull yourself together, dude."
The sound of a particular fart caused by overly compressed butt cheeks. This will occur due to the person attempting to slip out a silent squeaker so as not to draw attention to his or herself. Odds are a quack-like sound will result from this expulsion. There will always be at least one person who will notice and call you out immediately.
Wow, dude! Did ya step on a duck? Nice one!
A really loud, smelly fart
that almost sounds like a quack.
WHOA...who stepped on a duck?! It fuck
in' stinks in here!