one-night stand

US /ˌwʌn naɪt ˈstænd/
UK /ˌwʌn naɪt ˈstænd/
"one-night stand" picture
1.

a single sexual encounter between two people, usually strangers, with no expectation of further relations

:
They had a one-night stand after meeting at the bar.
She regretted the one-night stand the next morning.
2.

a single performance by a musician or group in a particular place

:
The band played a one-night stand in a small club.
The comedian is doing a one-night stand in our city next month.