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1.
Opposite of repeating
1. Saying the exact same thing before someone else says it- as if reading their mind.
2. A perfect way to stop a 'stop-copying-me' when you, the copier, gets sick of it.
1.
Teacher: Explain the soil cover in Ireland
Dude#1; <thinking> Mainly brown soils with gleys- some peaty soils with very few podzols
Dude#2: Mainly brown soils with gleys- some peaty soils with very few podzols

2.
Guy1: Want some chips?
Guy2: Want some chips?
1: Yeah thats what i'm saying.
2: Yeah thats what i'm saying.
1: stop copying me
2: stop copying me
1: Shut up!
2: Shut up!
1: Stop repeating me.
2: Stop PREPEATING me.
by Cillian S October 14, 2007
 
2.
The act of a person, throughout an entire movie, saying all of the funny lines from the movie directly before the line is said by the actor/actress in the movie.
"Dude. Please stop your incessant prepeating. You're totally ruining our movie experience!!"
by ProgPrincess February 05, 2010