pre-mustard

The clear milky discharge that is often released prematurely from the tip of a mustard bottle when squeezed too hard or too quickly.
Bill's bun got splattered with pre-mustard when Lisa tried to apply the French's to his wiener.
by PGM1 March 09, 2010
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mustard pre-cum

The clear liquid that dribbles out before the mustard when you squeeze the bottle. This usually happens when the mustard sits for a long period of time.
Gross, I just got mustard pre-cum on my sandwich.
by Jeff the bear March 10, 2010
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