Snag

A stump or base of a branch that has been lopped off; a short branch, or a sharp or rough branch.

A dead tree that remains standing.

A tree, or a branch of a tree, fixed in the bottom of a river or other navigable water, and rising nearly or quite to the surface, by which boats are sometimes pierced and sunk.

(by extension) Any sharp protuberant part of an object, which may catch, scratch, or tear other objects brought into contact with it.

To catch or tear (e.g. fabric) upon a rough surface or projection.

"Be careful not to snag your stockings on that concrete bench!"

To damage or sink (a vessel) by collision; said of a tree or branch fixed to the bottom of a navigable body of water and partially submerged or rising to just beneath the surface.

"The steamboat was snagged on the Mississippi River in 1862."

To fish by means of dragging a large hook or hooks on a line, intending to impale the body (rather than the mouth) of the target.

"We snagged for spoonbill from the eastern shore of the Mississippi River."

To obtain or pick up (something).

"Ella snagged a bottle of water from the fridge before leaving for her jog."