1. A very favorable agreement, cost, or situation. We never thought we'd be able to afford a neighborhood like this, but we got a good deal on this house.
2. An acknowledgment that a situation or proposal is acceptable, pleasing, or fortuitous. A: "I'll plan on coming around this Friday evening." B: "Good deal, buddy."
exclam. That is good! (Old, but still heard.) Everyone is here on time! Good deal!
See also: good