Very agitated and over-stimulated. A person "pinning badly" is nearly having a nervous breakdown. Causes are drugs or a recent extremely stressful event. Major symptom are rapid speech, often with quick series of logic jumps. Minor symptoms include wide-open eyes, with darting eye movements.
You need to relax; you're pinning bad.
by Kingdragonfly July 07, 2015
The act of getting browned/blacked out at the bowling alley, usually resulting in throwing a ball into a neighboring lane, pissing off old fat guys (bowlers). Can also include vomiting, fighting, or shitting your pants on the lane.
Cody is pinning so hard tonight... he just puked all over his bowling ball, and then threw himself down the lane!
by D-Raz800 December 21, 2011