The faux illness your girlfriend/boyfriend gets on a weekend night preventing you from going to meet up with your friends as originally planned.
Dude 1: Didn't Mess say he was coming tonight?
Dude 2: Naw, his girlfriend caught the Friday Night Flu.
Another term for the Swine Flu otherwise known as H1N1 virus.
"Yo bro, I got that Swizz Fizzy Flu"
The reason why you are all alive. Chief Bird Flu is chief of the Bird Flu Society, which will shit on your face if you commit heresy. All hail Chief Bird Flu.
Chief Bird Flu owns you.
Someone who acts like a bitch seasonally
Ayo i heard BIG KEV has the bitch ass flu
An unpleasant hangover (From the movie "The Shallows"
" ...and now she's just stuck back at Las Rocas with the Irish flu"
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Why are you in my Fippidy Floppidy Flu yo.
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A very rare flu
Symptoms: coughing, sneezing, runny nose, random boners
You can usually figure out if you have the flu when you get a boner in even the gayest situations, and often have the urge to touch yourself.
Jeff: I have a bad case of donkey boner flu.
John: I can tell...
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