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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!"
by But Sects June 15, 2017
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Jan 22 Word of the Day
Whenever making a congratulatory remark, this is what you say. Made popular by Kamala Harris when she and Joe Biden won the presidency.
Sam: Wow, I can’t believe we just won that relay race!
Cat: we did it Joe 😭😭
by Zozogabobo December 04, 2020
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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.
by RyzeX November 09, 2013
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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"
by Z-chan June 04, 2004
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THE HOTTEST BAND THAT NO ONE KNOWS ABOUT ! the sexiest ska music ever!
Hey katie what song do u wanna have sex too?

by lizers April 14, 2005
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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?

by hottnes March 05, 2005
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