When a person intentionally leaves one sheet of toilet paper on a roll, shifting the responsibility for putting a new roll on to the next hapless user. The next user may discover too late that the supply is insufficient and have to hop over to the closet with their pants around their ankles to get a new roll. In a frat house it is unlikely that there is another roll. This individual is the lowest of the low rollers.
Hey dude, can't you let people know that the TP is used up? I had to fish some dirty tissues out of the trash to wipe my ass with. Stop being a sheet shifter you asswipe.
by pelicanellie June 14, 2014
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One who presses too lightly on the "Shift" key, thereby causing breaks in strings of exclamation/question marks.
Loose Shifter: THATS SO COOL!!111!!!!1

Annoyed Person: You are such a loose shifter.
by Anonymous October 5, 2003
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When you transition from being sexually attracted to people similar to your age to only exclusively wanting to fuck grandmas.
"Damn Edna got dat ass"

"Bro don't tell me jon is a granny shifter"
by TheReaperOfQueefers April 8, 2021
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A depressed person that always tries to pretend that she's not depressed anymore while she still is.

When she pretends so, we call it a "fake shifting".
Tommy: mom, can I stop taking these drugs? I don't need them anymore.

Tommy's Mom: you can't, Tommy, you're depressed and I don't want you to kill yourself.

Tommy: that's okay mom, i'm not depressed anymore. I feel good, now.

Tommy's little brother: he's a liar, mommy! Look at the cut marks on his arms! He's still harming himself!

*Mom looks at the cut marks*

Tommy's Mom: why are you trying to lie, Tommy?

Tommy's little brother: that's because he's a fake shifter!
by imfreakishlyyours January 17, 2010
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Modification to a motor vehicle that adds unbelievable power and torque. Gives a Prius enough power to chop a hsv vf gts.
Kristen said she would chop me because she has paddle shifters.
by Illdefineyou February 6, 2017
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A sneaky individual, probably Welsh in origin, who feels uncomfortable in the presence of sheep. Because they are a sheep shagger and they don't want people to notice their erection poking through their trousers. May also cry uncontrolably when they see someone wearing a woolen garment.
"That guy is a bit of a sheep-shifter, isn't he?"
by Mr Ben February 8, 2005
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The mechanism by which Nitro Lew shifts his car. Involves inserting special modified shift knob into rectum.
Nitro Lew sure is slow to change gears, maybe if he could power shift with the colon shifter he would be half fast.
by Teddy April 10, 2005
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