APU stands for Auxiliary Power Unit.
An APU can be found in commercial airline aircraft to start a bleed valve and start the engine.
Turn on the APU bleed air valve!
by idksomepilot February 26, 2021
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Synonymous with APUSH, or Advanced Placement United States History. Pronounced a-p-u-s. Used by those who prefer not to refer to the course as a-push.
I have APUS next period.

My APUS teacher loves Henry Clay.
by Mom of Troocher March 25, 2008
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Accelerated Processing Unit.

APU for short. Combines up to four CPU cores with DirectX 11 capable graphics, and up to 400 Radeon cores. Also has dedicated HD video processing on a single chip. Removes the need for a graphics card.

Pretty much the most ballin' piece of electronic your computer can have.
Guy: My PC sucks...

IT guy: Yea, cause you don't have an APU.

Guy: Can I get one?

IT guy: Yea, but we'll have to switch your motherboard because it's not formatted for APU's.
by blukittygeek January 2, 2012
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Armored Personel Unit
I got into the APU and killed some dirty Yugos.
by Luka November 22, 2003
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A combination of "up" and "ue" (上, うえ) which is used as a catchphrase by Virtual YouTuber, Hana Macchia.
by TheBitStick November 11, 2020
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Cambridge, Uk's 'other' university. Also known as the 'Early Learning Centre'.
You study at Cambridge? Wow!

Err...wel, aktully i do medea studys at Apu.
by Miles Pieri January 23, 2004
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One of the most ridiculously difficult, most fucking aggravating and profoundly anal retentive classes ever to be conceived by a devil worshiping baby eater. It alone can bring down an honor role student to virtually failing grades, anybody who gets a fraction of a point above above a 79% in this class and has the audacity to state that it is easy, or complains about their grade, has the choice to either literally drive 16 ford f350's directly into their tight pink virgin, soon to be bleeding, assholes, or rip out their sexual organs and sell them on eBay for no more that $1.35.
Bum: Spare some change??

Pedestrian: Why didn't you finish high school ya lazy bum?

Bum: I took apus history.

Pedestrian: ...how much do you need?


by cockjuggling thundercunt March 22, 2009
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