He'll stop humping as soon as he's done.
5 seconds sound clip from the Joe Dirt (2001) movie soundboard.
You can hear this line at 00:07:18 in the Blu-ray version of the movie.
Quote context
[...]
- I don't wanna be unkind, but this woman was a little off-balance.
- I expect your schoolwork to be done every night and laid out for my inspection. Is that clear?
- Uh, can I push him off my leg?
- He'll stop humping as soon as he's done.
- I was 11 years old now, and I'd gotten into a little trouble here and there,
- I was living in a juvie home for boys, and I was getting ready to split that scene, and pronto.
[...]