Skeet Shifter 

An automatic transmission in a vehicle that has been modified to have firmer and faster shifts for better performance. the shift can be so hard that it causes the drive tires to momentarily spin causing a "Skeet" or chirp sound.

Did you hear those tires chirp? He must have put a Skeet shifter in that thing!

Skeet Shifter by eddymetal1 July 6, 2010

sheet shifter 

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.

sheet shifter by pelicanellie June 13, 2014