To fuck. Also can be used as an insult.
Person A: "Want to go flunch later?"
Person B: "Sure! anytime"
by terpsrock66 July 18, 2010
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aka fun lunch, a work lunch where drinking is not only accepted it is mandatory.
My TL drank a pitcher of Margaritas at our flunch.
by Skeezer Pleezers June 26, 2006
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i am going to flunch today with my boss
by bunny rugs November 10, 2006
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A cross between flunking and a crunching sound, usually caused by procrastination or leaving class early.
When you don't do anything you flunch.
by Glitch October 12, 2004
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"Going to flunch, wanna come?" "Hell yeah!"

"There's no such thing as a flunch."

"It's flunch, but you have to tip."
by beinmetz October 28, 2009
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An easy way to ask "what's for lunch?" to a workmate.
"Flunch?" or "Dude, flunch?"
by thrtnastrx February 22, 2008
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Hey bro you going to get flunch?

I'm getting flunch.
by Ilikemcnugs March 7, 2018
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