A Bad Day Brew is when you had a long, exhausting day and you need a drink. You then proceed to have a beer and drink half of it, but you are not in the mood to drink and it pisses you off.
Man! Work was horrible and exhausting. It makes me want a drink. I hope today doesn't continue with some bad day brews.
by The_Man_Myth_Legend October 26, 2020
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when something bad happens (it doesn't really have to be all day)
Lisa- "damn it i spilled my coffee"
Jannet- "damn thats a bad day"
by Deidre Jenel February 21, 2007
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Dumber than a rock on a bad day, which would be dumber on the dumb scale compared to "Dumber than a rock".
Friend 1: Your dumber than a rock!
Friend 2: Your dumber than a rock on a bad day!
Friend 1: Shit.
by jeffboi42 August 21, 2020
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A term derived from "bad hair day." A bad pube day occurs when a person has not trimmed his/her pubic hair, and it looks fucked-up and disgusting.

It may also be used metaphorically, and mean that you had a bad sex experience in the morning, and it caused a bad attitude for the rest of the day.
EXAMPLE #1
Joe: Dude, whats with your pubes?

John: I didn't have enough time in the morning to trim them.

Joe: That sucks. I hate bad pube days. It looks like Donald Trump down there.

Boss: Alright guys. You've been by the watercooler for too long. Back to work!

EXAMPLE #2
Joe: Hey John. Did you send that fax yet.

John: SHUT THE FUCK UP. I'M ON IT!

Joe: What his problem?

Boss: He came too fast this morning and his wife got REALLY pissed. This is probably his most intense bad pube day I have ever seen.
by rogerthewhale October 21, 2010
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A day where your abilities to dominate in COD, Call of Duty: Modern Warfare 2, are not present, similar to a slump in baseball.
"Dude you suck, you went 4-0-16"
"Shut up, I'm having a bad COD day"
by reidthegamer March 5, 2010
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A bad hair day is also a day when everything is going bad. It has nothing to do with how one's hair really is, it's just that everything is going wrong. The term "bad hair day" derives from how psycho one feels because everything is going all wrong on a particular day!!
Grabs handsful of hair and tugs in indesperation, "Arrrrrgh!! I'm having such a bad hair day!!"
by Joy January 25, 2005
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The mood or feeling one experiences after having just filled his or her vehicle with $4.00+ per gallon gasoline. (Usually consists of a sense of great economic despair, impending doom, anger, frustration, depression and/or a combination of all the above)
"Leave me alone. I'm having a bad fuel day!"
by Sonoma County Dave April 22, 2008
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