✔ Tie the knot
If you tie the knot, you get married.
■ For example:
- Tammy and Stevie Ray are tying the knot at the Shortside Baptist Church next Saturday, and you’re all invited.
- Mary really wants to tie the knot, but Sam says he’s not ready for marriage just yet.
Origin: While there is no definitive evidence to prove it, many etymologists suggest that this idiom derives from the actual ritual of tying a knot which has been a part of marriage ceremonies in many cultures through history.