Muck

general

Folding without showing your cards. Also: the discard pile.

Standard at showdown when you’re losing — no need to give opponents free information.

See also

Action
Your turn to act, or the overall betting activity in a hand.
Bad Beat
Losing a hand where you were a heavy statistical favorite.
Board
The community cards dealt face-up in the middle of the table.
Cooler
A hand where two players have very strong holdings — unavoidable losses happen.