Beer which one "discovers" having not known that it was there. Typically this occurs after a party or family gathering/event and may often involve a secondary fridge or forgotten cooler. Discovery of said beer is usually followed by feelings of joy and well being, similar to finding unexpected money in a jacket one has not worn in some time.
I'll just clean out the fridge, haven't done that in a while... wait a sec what's this? BONUS BEER! Righteous!
by Chef Dionysus September 12, 2008
Get the bonus beermug. by boston March 9, 2005
Get the bonus beermug. When you're too drunk too remember exactly how many beers you have left, but you have 1 more than you thought.
by UmamiDaddy March 11, 2020
Get the Bonus Beermug. I woke up in the morning thinking I drank every ounce of alcohol the night before then SHAZAM!
Bonus beer magically appears!!!
Bonus beer magically appears!!!
by knockanutt November 5, 2017
Get the Bonus Beermug.