there are many definitions for flipping the mustard; the most popular being to laugh so hard until you pee. Also, to flip the mustard can mean to grow angry and throw a fit, or conversely to have a startling revelation/epiphany which makes total sense of a previously bewildering topic. In addition, it can mean to literally flip the mustard container on your dinner table.
Did you see that? I think I just saw Jack flip the mustard!
I'm surprised we haven't seen John flip the mustard yet...
Man, David's being quite the @^$*(&# lately... he flips the mustard quite often.
I'm surprised we haven't seen John flip the mustard yet...
Man, David's being quite the @^$*(&# lately... he flips the mustard quite often.
by Bobby D. Awesome June 19, 2011

1. A term for a woman's vagina, when receiving cunnilingus, has a sharp, sour, foul taste reminiscent to that of the condiment mustard.
2. A term for a woman's vagina that gives off such a foul odor so strong that it could result in casualties, much like Mustard Gas.
2. A term for a woman's vagina that gives off such a foul odor so strong that it could result in casualties, much like Mustard Gas.
by JEII May 18, 2006

What it looks like that is left on your sheets after boinking a woman who is both on her period and has a yeast infection.
Damn! That chick I took home from the bar last night didn't say a word about her issues. I ended up with puddle of ketchup and mustard on my bed, and I didn't have time to throw my sheets in the washer this morning.
by Mr. Q45 June 12, 2017

I have just had the worst crap and it burned on the way out and looked like the curry as it went in Korma yellow it was Arse Mustard
by Arse Mustard May 19, 2009

A spoon used for eating out an ass. Smaller than a tablespoon but larger than a teaspoon. Normally used by drunk Irish people at bars.
by Australia Barcelona March 21, 2009

Atrioc: I guess my favorite condiment would have to be mustard.
Twitch chat: Damn right, MUSTARD BOY!
Twitch chat: Damn right, MUSTARD BOY!
by meteoridian July 1, 2021

by John Paul jr February 27, 2008
