Bucking the mustard is basically having diarrhea so bad it's squirting yellow from your rectum like someone's squeezing a bottle of mustard and it farts towards the end. Generally followed by the sound of someone scrubbing the shit splatters off the side of the bowl.
Man, I was up all night bucking the mustard.

Jill: Yeah don't bother coming to work, I don't want what you have.

man: I will call tomorrow and let you know if I am feeling better.
Jill: Okay
by rhonin66 March 2, 2021
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An Asian Jew or also could be a Asian man with a uncircumcised below average penis
I tell ya what Jenny I had the best mustard top in my life

Second that fucking mustard top Jew tried to sell me undercooked chicken fried rice at double the price
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A dude with a deep and passionate appreciation for mustard.
Atrioc: I guess my favorite condiment would be a nice mustard.
Twitch chat: Dam right, MUSTARD BOY.
by meteoridian July 2, 2021
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Upside Down Mustard Container (noun)

1. An idiotic attempt at an insult by someone who can't figure out what a good metaphor is.

2. A plastic container for holding and serving mustard, usually a squeeze bottle that can be placed upside down so that the contents are more quickly and easily accessed.
Time slipped away as he searched his idle brain for the perfect insult after an acquaintance had called him out on his usual shenanigans. Unfortunately, nothing came, so he blurted out, "I hate you! You upside down mustard container!" The man on the receiving end laughed and laughed, and then turned and walked away. He hasn't stopped laughing to this day. Not realizing just how lame his comment was, the one hurling the lame attempt at an insult held his head extra high, smiled in a way that looked more creepy than proud, and patted himself on the back for being such a creative, strong young lad.
by ggirlcolo May 2, 2023
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Those little yellow spots that rain down from outer space and appear on your car the day after you've washed it.
Oh man, I just washed my car on Sunday and it's already got so much space mustard on it!
by donutz mmm May 15, 2022
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A severe case of diarrhea, when the feces carry the same characteristicas as various types of mustard. Usually yellowish brown in color and runny in consistency, sometimes looking a bit grainy in appearance.
I ate some bad fish and have had The Devil's Mustards all morning.
by maskedrolla December 31, 2018
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When there is a three way with two guys, and one guy nuts in the girls pussy and the other guy pees in it
I had a salty mustard sandwich yesterday, and it was delightful!
by Big dick Daquan April 13, 2018
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