Definition
A brief and casual sexual encounter, typically lacking deep emotional involvement.
一夜情
They had a roll in the hay after the party and then went their separate ways.
他們在派對後有了一夜情，然後就分道揚鑣了。
He admitted his mistake of having a roll in the hay with a colleague while on a business trip.
他承認在出差時與同事發生了一夜情的錯誤。
She was just looking for some fun, a roll in the hay, not a serious relationship.
她只是想要一些樂趣，一夜情，而不是認真的關係。