Uhfficient Share definition Flag 1. Someone who pauses a lot when talking 2. Someone who is the opposite of efficient 1. Hi uh my name is uh is uh Gary 2. Gary is so uhfficient he never gets anything done Uhfficient by BSTOLZ June 11, 2013 0 0 Get merch Get the Uhfficient mug. Buy Now — $32.95 See more merch