pocket trap 

When you walk past a door knob/ handle/ banister railing, and your pocket gets caught on it, hence pulling you back suddenly, and making you look like a right tosser.

Guy #1: Oh shit, I got pocket trapped on my date last night.

Guy #2: Epic fail.

pocket trap by VampireFriends January 17, 2009

Pocket Trapped 

Those who are loathe to explore their pockets for change for the next round lest they have been booby trapped by the Viet Cong.

"Here! Shuggy! It's your shout or are you Pocket Trapped or what?"

Pocket Trapped by doorstopnazuums December 3, 2011