pay-off

/ˈpeɪ.ɒf/noun
RareNot in standard dictionaries
1

A payment in full; the state of having been paid in full.

2

A reward.

3

A return on investment.

4

A bribe.

5

A resolution or justification of an event that has already occurred.

6

Ellipsis of payoff pitch.

#colloquial#informal