2 definitions by idksomepilot

AR-15 stands for "Armalite Rifle", not "Assault rifle" or God forbid "Automatic rifle" because it's the semi-auto civilian version of the M4.
Do you know what AR-15 stands for?
by idksomepilot July 18, 2022
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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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