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a fire deptartment term for a shift, they work every 3rd day. smug little fuckers who think they are better than the other two shifts. They will use any excuse to inflate their heads cause they think the KOOL-AID they drink together makes them super firefighter. They tell how much training they do, but it involves coffee and the price is right.
I'd rather be a cop than an A-shifter.

God made A-shift to give the other 2 shifts a day off

B-shifter to an A-shifter- "so did you guys clean the truck?"

A-shifter- "NO! we where too busy drinking KOOL-AID! and we ran 2 calls so we where way to busy to take time to clean the truck!"
A-shift by C-Shift October 8, 2009
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One of the fire departments 3 shifts. Training involves checking cracks in their eye lids and making sure the dexterity of the couches doesn't diminish. These ass clowns arnt worried about how clean the engine is because its just a work truck and they only have time to run calls because they are so busy with "training" otherwise. If you like being a worthless piece of shit this is the shift for you!
A-shifter: "Hey guys, I know i just got food from lunch all over the floor but i have to make sure the couch is stable enough for my fat ass so ill be over there"

B-shifter to A-shifter: "I took a shit this morning, looked down and there you were floating in the toilet. I said what the hell are you doin here so early this morning? let me help you out, flush!
A-shift by Jack Sean July 28, 2012
1 of 3 shifts used in fire department scheduling. It is by far better than the other 2 shifts with the best firefighters to do the job right the first time. If your house is on fire pray that A-shift is working if you would like your house to be saved. If your house ends up in the basement it's probably because B or C shift showed up.
Person 1: "Thank god B-shift was working to save my house and my family, We owe those guys our lives!"
Person 2: “A-shift is God’s gift to man kind!”
A-Shift is one of several FD shifts. A-Shifters are known to be the laziest of the shifts. They never clean, never do weekly checks, and always manage to fuck over B-shift(the B is for Best).
Fucking A-Shift…”
A-Shift by Broccoli_800 July 12, 2022
a person who says something one day then changes their opinion to the opposite the next on a continuous basis
Trent: Bro, Melvin told me to fuck off and get out of his life last week, now he's saying i love you and acting like a mate

Abanoub: Yeah what a freak, he's done that like 20 times to me, such a shift.
a shift by the original t-bag March 13, 2009

blew a shift 

when you get carried away while having sex and you pull out to far and slam it into the woman's (or man's if that's your deal) ass, side of the pussy or side of the leg..
o shit..I was fucking my woman last night and blew a shift..now I can fuck around corners..
blew a shift by Dave Ackmed September 17, 2006

Taken a shift 

An American Term for when something isn’t working and has a mind of its own.
Taken a shift by USAmoose December 5, 2024