Definition of: snag

(snag) noun
1. A jagged or stumpy knot or protuberance, especially the stumpy base of a branch left in pruning.
2. The root or remnant of a tooth remaining in the jaw; also, a projecting tooth.
3. A branch or point of a deer's antler.
4. The trunk of a tree fixed in the bottom of a river, bayou, etc., by which boats are sometimes pierced.
5. Hence, any unsuspected or hidden obstacle or difficulty.
—v. snagged, snag·ging v.t.
1. To injure, destroy, or impede by or as by a snag.
2. To clear of snags.
3. Colloq. To block; impede.
—v.i.
4. To run upon a snag: said especially of river craft. [Prob. <Scand. Cf. dial. Norw. snag sharp point, projection.]
—snagged adjective