Beer Flu 

Can occur on a Sunday evening bust most often Monday through Thursday. Caused by the excess consumption of alcholic beverages the previous evening, resulting in a craptastic hangover the following morning, most certainly resulting in a "sick" call into the office.

Dude, what happened to you yesterday, I didn't see you in the office, are you OK?

I got so shitfaced the other night that I had to call in sick this morning on account of the Beer Flu.

Beer Flu by C.A. Stallworth April 24, 2006

Beer Flu 

When you wake up the next morning after a heavy night of drinking, unable to go to work you phone and call in “sick”

John phoned in sick today, but I recon he has a case of beer flue.

Beer Flu by Linus Hanger May 30, 2006

Beer Flu 

The discreet way of saying that you have/had COVID-19

YouTubers refer to COVID-19 as The Beer Flu

Beer Flu by JonSturtz23 April 2, 2022

Spooky beer flu 

Simply another way of saying the corona virus, because there is a beer called corona
Usually used in dark situations involving COVID to try and lighten the mood

Person 1: man I just got COVID, I'm fucked
Person 2: you mean spooky beer flu?
Person 3: what the hell are you talking about?

Spooky beer flu by Ageddevistation August 18, 2022

Beer Flute 

A drinking game based around making a whistle-like sound from blowing onto the top of your beer bottle.

Each person starts out with a long sip, then the person with the highest pitch (drank the least) needs to set the new low pitch by drinking. This person then blows into their bottle to give the other players the new pitch, and solely based on the sound of the pitch, the other players must then chug and attempt to match the new low pitch. After the chug, everyone playing blows into their bottle and the player with the highest pitch needs to set the new standard, and you're on your way!
If at any time the new standard is the finishing of the bottle, all players must finish their beers to win. Anyone who does not finish in one chug loses.

Many find Beer Flute to be a great game because of its musicality, and its ability to become more versatile (and more fun) with more players.

"Hey dude, you want to play a round of Beer Flute?"
"Beer Flute? That's the best game ever!"

Beer Flute by Chad69 May 19, 2009