Flu-Flu is another term for vagina. Often used when dealing with a baby when changing a diaper.
"Cover that Flu-Flu, no wants to see a baby bug."

by NOS BOD January 28, 2009
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"bro you have a test today? that's the flu"
by wildthing0707 December 10, 2019
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-Also shorthand for 'Influenza'.
Damn. I've got the flu again.
by victorhadin December 8, 2003
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When something is so sick (see the definition of sick) that the next level of sick is FLU.
Yo, the 24s on that truck is FLU..
by MBEZ June 19, 2007
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I have an itch down below, I think I have crabs on my flu
by Ashers September 4, 2003
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A word that means you caught a Flu

( not really a word but I made it up )
-Are you okay?
- I just got FLUed, no big deal.
by Haleem El February 16, 2019
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A non-medical term for the 3-5 days of feeling like crap after you get your flu shot.
Dude 1. Hey, what’s wrong with you? You look like shit.
Dude 2. I also feel like shit. I got my flu shot yesterday, now I have flu shot flu.
by Ski25 November 13, 2011
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