A myth older than the bible. There are many different versions depending on the country or area of the world but Free Beer has always been and continues to be a method of attracting people to lame events and or boring parties. It continues to be a tease because if anyone really did experience real true free beer in its purest form, chances are they got too drunk to remember it anyways.

Literally everyone, ever. Including the writer of this definition.

a myth created by cruel, unfeeling people who live to torture myself and others of my gullible ilk

Free beer, free beer,
it's my favorite brand!
If I didn't have to buy it,
it's the best beer in the land!
WARM! FLAT! FUZZY!
It don't matter to me!
The best beer in this whole world,
is the one you buy for me!

beer that is without compensation... Usually a sign of good luck.

Taking Free Beer describes the act wherein a man have sexual relations with a woman when she is passed out.