1 definition by Bob the Rook

Top Definition
A term used to describe the contorted facial expression Matthew Fox's character, "Jack Shephard", makes when he is angry, yelling, or just plain acting crazy on the television show "Lost"
"Did you see that awesome Jackface Jack made when he was shooting at 'The Others' last night on Lost?"
by Bob the Rook May 26, 2006

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug