smash and dash

slang

(slang) An act of sexual intercourse after which one immediately leaves.

Japanese Meaning

性交後すぐに現場を離れる行為、つまり一夜限りの軽い関係を指すスラング

I found out he was only looking for a smash and dash.

彼が求めていたのは、セックスをした直後にすぐ立ち去るような一時的な関係だけだと分かった。

Sense（1）

(slang) An act of sexual intercourse after which one immediately leaves.

I'm not looking for a long-term relationship: I'm okay with an occasional smash and dash.

smashes and dashes

（ plural ）