The yellowish liquid that comes out from an upside down mustard bottle right before you squirt mustard onto a food item. Usually groans can be heard from the squirter indicating that mustard pee came out of the bottle instead of mustard.
by Cannibalporsche July 03, 2011
Get the Mustard Pee mug.A quick once over of all your online accounts with the possibility of sending people messages. Mostly to make sure you didn't say anything incriminating while intoxicated.
"Let me check Facebook real quick, I have to make a quick morning after review so I know I didn't do anything I'll regret"
by cannibalporsche May 13, 2012
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