What is Bonus Night?
1.
When two people break up and get back together just for one night. It was originally from the Friends episode, The One With Monica's Thunder (episode 701), this term was from Rachel to Ross.
Rachel: Hey! You know what we never did?
Ross: *raises eyebrow
Rachel: Oh no, not that! um, we never had, we never had BONUS NIGHT!
Ross: What?!
Rachel: ..Oh you know when two people break up and get back together just for one night.
Ross: One night... just sex... no... strings attached?
See