snap

A quick breaking or cracking sound or the action of producing such a sound.

A sudden break.

An attempt to seize, bite, attack, or grab.

To fracture or break apart suddenly.

"He snapped his stick in anger."

To give forth or produce a sharp cracking noise; to crack.

"Blazing firewood snaps."

To attempt to seize with the teeth or bite.

"A dog snaps at a passenger. A fish snaps at the bait."

Done, made, performed, etc., quickly and unexpectedly, or without deliberation.

"a snap judgment or decision    a snap political convention"

The cry used in a game of snap when winning a hand.

By extension from the card game, "I've got one the same!", "Me too!"

"Snap! We've both got pink buckets and spades."

Ritual utterance of agreement (after the cry in the card game snap).