zalutati

1. to get lost; to lose one's way
   Zalutali smo u šumi i vratili se tek uveče. — We got lost in the forest and only got back in the evening.
2. (u + acc.) to wander into; to end up somewhere by chance
   Slučajno sam zalutao u jednu malu galeriju. — I happened to wander into a small gallery.
   Ubio ga je zalutali metak. — He was killed by a stray bullet.

The participle zalutali often means "stray": zalutali metak "a stray bullet".