Definitions by hiphopotato

plank time 

The smallest span of time able to be measured according to physics.

Dude1: "Did you know that plank time is the smallest span of time able to be measured according to physics? I learned it from urban dictionary."

Dude2: *BITCHSLAP* "You are such a worthless tool."

plank time by hiphopotato June 27, 2008