—n. 1. a tree or part of a tree held fast in the bottom of a river, lake, etc., and forming an impediment or danger to navigation.
2. a short, projecting stump, as of a branch broken or cut off.
3. any sharp or rough projection.
4. a jagged hole, tear, pull, or run in a fabric, as caused by catching on a sharp projection.
5. any obstacle or impediment.
6. a stump of a tooth or a projecting tooth; snaggletooth.
—v.t. 1. to run or catch up on a snag.
2. to damage by so doing.
3. to obstruct or impede, as a snag does: He snagged all my efforts. 4. to grab; seize: to snag the last piece of pie.
—v.i. 1. to become entangled with some obstacle or hindrance.
2. to become tangled: This line snags every time I cast. 3. (of a boat) to strike a snag.
4. to form a snag.