A description of several-day-old semen residue found typically in a male’s unwashed boxers; sometimes found on toilet rims, walls, the ceiling; always found on farm animals
“As you can see, this involuntary celibate atheist weeabu hasn’t left his basement unit in 42 years, made evident by a 10x7 inch mound of moderately radioactive, dandruffy fuck mustard. God may be all-loving and powerful, but he for sure fucked up when he made this guy.”
by Dumpster Choir February 10, 2021
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The mixture of anal lube, semen, and feces resulting from butt sex.
When I got done fucking her in the ass I had Fuck Mustard on my dick. Tastes great on burgers!!!!
by KingMustard February 20, 2014
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The act of putting honey mustard all over your girls vagina, then putting your penis into it. She then proceeds to lick your dick when finished.
My girl and I honey mustard fucked last night.
by Taintsmellslikepaint June 18, 2021
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Phrase exclaimed upon the massacre of the English language; the inability to pronounce a phrase with any level of coherence.
Gabe: *Speaks*
Santi: BRO Fucking mustard *dies*
by Dr. Grammarly June 24, 2022
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