Why would he be trippin' balls?

tweak
-Pronunciation (twk)
tr.v. tweaked, tweak·ing, tweaks
1. To pinch, pluck, or twist sharply.
2. To adjust; fine-tune.
3. To make fun of; tease.
n.
1. A sharp, twisting pinch.
2. A teasing remark or action; a joke.