snag / snag/ • n. 1. an unexpected or hidden obstacle or drawback: the picture's U.S. release hit a snag.2. a sharp, angular, or jagged projection: keep an emery board handy in case of nail snags. ∎ a rent or tear in fabric caused by such a projection.3. a dead tree.• v. (snagged, snag·ging) [tr.] catch or tear (something) on a projection: thorns snagged his sweater. ∎ [intr.] become caught on a projection: radio aerials snagged on bushes and branches. ∎ inf. catch or obtain (someone or something): it's the first time they've snagged the star for a photo.DERIVATIVES: snag·gy adj. (in sense 2).