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1. after receiving a text, intentionally waiting a certain period of time to text back to make it seem like one is either too busy, not interested, or just not over-eager.

2. when on tour, driving a few extra hours in the van on the way to the show in order to avoid the sunrise shift on the upcoming overnight drive.
1. "this crazy chick i hooked up with has been texting me non-stop so i've been phase shifting to slow her ass down."

2. "pull the fucking van over kevin i know you are fucking phase shifting right now you fucker."
by TeddyPendergass January 06, 2010