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1. pims
the phonetic pronunciation for what someone is who is bitchy, or always PMSing
"don't even talk to nadia, she has chronic pims"
by lauren Sep 1, 2003 share this add a video
2. PIMS
Stands for: Peeing In My Shoes

Means for when your peeing your pants especially when your wearing shorts.
Girl: I was laughing so hard I was PIMS