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.
The person at your office who is responsible for sending or forwarding most of the junk mail you receive. Their inbox is usually full of emails with titles like "Funniest Kid Ever," or "Cute Whale Photos."
Person 1: Dammit, not again!
Person 2: What's wrong man?
Person 1: Cindy, the office "LOL Cat" sent me another stupid chain email about dogs wearing sunglasses.