Shania Twaining

After being cheated on by your spouse with your best friend, getting them back by hooking up with your best friend’s spouse.

This term comes from the factual scenario when Shania Twain’s husband cheated on her with her best friend. Shania Twain later divorced him, and married her best friend’s husband. This really happened, I shit you not.

Jim: “Wow, I can’t believe our best friends are idiots and decided to cheat on their spouses with each other.”

Rachel: “Yea, but that’s ok, the real winners are Mike and Sarah. They ended up Shania Twaining in the end.”