Snaggle-jacked Share definition Flag Adj. Any set of teeth that can duly be described as snaggle-toothed and jack-mouthed. Damn that bitch's crooked, buck, ass, teeth scare me! What a heinously snaggle-jacked smile! Snaggle-jacked by disklaimer August 19, 2010 Get the Snaggle-jacked mug.