The children 'snapped to attention' [=suddenly stopped moving around, talking, etc.] when the teacher clapped his hands.
They 'snapped' [='broke'] a 10-game losing streak. [=they won a game after losing 10 games]
I don't know how to get her to 'snap out of' her depression. [=to stop being depressed]
(..) I'd be very, very careful who you talk to about that. Because the person who wrote that is dangerous. And this button-down, Oxford-cloth psycho might just snap and then stalk from office to office with an Armalite AR carbine gas-powered semiautomatic weapon, pumping round after round (..)1999 Fight Club