Mustard Plug 

A small preliminary shit that, once expelled, gives way to a large volume of feces. It resembles and reminds one of the crust of dried mustard that forms on the cap of the bottle which must be voided before the main mass of the condiment can be squeezed out.

Jason: "How's your stomache ache, bro?"
Matt: "It's gone now. I had a thick mustard plug that was blocking a giant diarrhea bomb."
Jason: "Gross dude!"

Mustard Plug by But Sects June 15, 2017

Mustard plug 

A small amount of solid poop holding back diarrhea like the small amount of hard mustard in the top of a mustard container.

I sat down on the toilet and the mustard plug pooped out then was followed by explosive diarrhea.

Mustard plug by RyzeX November 9, 2013

Mustard Plug 

A great, American ska band. Awesome music ^^

"We're gonna take on the woooorld, come on every boy, every girl!"
"This is your brain, this is your brain on ska"

Mustard Plug by Z-chan June 4, 2004

Mustard Plug 

THE HOTTEST BAND THAT NO ONE KNOWS ABOUT ! the sexiest ska music ever!

Hey katie what song do u wanna have sex too?

MR. SMILEY BY MUSTARD PLUG!

Mustard Plug by lizers April 14, 2005

Mustard plug 

The Coolest band that no one knows about. Plays awsome Ska music!!!!

So Eliza have you heard of mustard plug?

Omfg they are the best band ever..we are going to the concert right?

HELL YEAH

Mustard plug by hottnes March 5, 2005

mustard plug 

the BEST ska band EVER from my hometown GRAND RAPIDS,MI

have u ever heard mustard plugs song lolita?

mustard plug by girl grom GR July 2, 2005

Mustard plug 

The crust left on the end of the eurthera after sex that makes pee go in several directions simultaneously.

"She got mad when I missed the toilet, but she calmed down when I told her I had a mustard plug."

Mustard plug by Helpful guy. April 13, 2014