snag
Definitions
An unexpected or hidden obstacle or drawback.
A sharp or jagged projection.
To catch or tear something on a sharp object.
Examples
I managed to snag the last ticket for the concert before they sold out.
We hit a minor snag in our plans when the car battery died.
Be careful not to snag your sweater on that sharp nail.
Synonyms
obstacle hitch complication difficulty problem catch setback