Snag

Aststummel

(stump or base of a branch)

Aststumpf

(stump or base of a branch)

Baumstumpf

(tree fixed in the bottom of a river or other navigable water)

Fadenzieher

(pulled thread or yarn)

Haken

(problem or difficulty)

Problem

(problem or difficulty)

Zahnstumpf

(tooth projecting beyond the rest)

springender Punkt

(problem or difficulty)

ergattern

(slang: to pick up)

sich schnappen

(slang: to pick up)