An unreasonable work shift. One that starts at an unreasonable time or is of unreasonable length. It may also be a change to your regular time or day.
Hey did you see the bullshift that jackass boss assigned me today. I guess I'll be working until midnight again.
by Traecy November 7, 2007
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for jobs that involve shiftwork, getting assigned an undesirable shift.
My supervisor gave me the three o'clock bullshift tomorrow.
by mj2007 October 24, 2007
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an inconvenient schedule for a shift worker

I can't believe the boss gave me a four o'clock bullshift tomorrow. It's like he has no idea of how to make a schedule.
by ca_mj November 6, 2007
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The name of Ellis' high school truck club, as seen on his shirt in the video game Left4Dead 2. It is a play on words; "shifters" referring to trucks/cars, and if you haven't already figured it out, the whole word sounds like "bull shitters".
I sabotaged the Bullshifters meeting with donkey poo.
by devlinne February 18, 2010
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The act of shifting a manual car to their highest gear and leaving it there regardless of how long it takes for the car to accelerate. The only time a bullshifter would shift down would be at the risk of stalling. Bullshifting is primarily a result of laziness.
Passenger: "Shouldn't you shift down? You're going freaking slow."
Driver: "Nah. I'm bullshifting."
by supereboy November 21, 2012
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