Top Definition
when your angry but dont wanna say anything so you bite down and tighten that jaw up till you get striations on your jaw line
i'm tight jawed when my security supervisor is locking himself in the office and chatting wit bitches all shift like kip from napolian dynomite and got the audacity to call me on the walkie talkie to go check out shit on site when he just googling all shift!! 
by jay nasty13 January 18, 2009

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