The runny liquid substance that comes out of the mustard bottle before the actual mustard if you don't shake it well before use.
I went to put mustard on my hotdog and all I got was this fuckin musquirt.
by treflip666 November 08, 2006
Top Definition
The watery liquid that comes out of the mustard bottle if one fails to shake it vigorously.
Excuse me my good man, but your are getting musquirt all over my wife...
by philbad July 09, 2004
The extra "mustard-water" that comes from a bottle of mustard when it's not properly shaken.
Person 1: "Dude my hotdog bun is ruined!"

Person 2: "why?"

Person 1: "Because, I forgot to shake up the mustard bottle and now my all-American-snack is completely soaked in musquirt!"........."Ewwwwwwwwwey!"
by Stevenoni January 21, 2008
The watery yellow drizzle that sprays out of an empty French's mustard bottle.
"Damn, a musquirt! Soggy buns again!"
by V. E. Reyes September 28, 2006
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