Mud Nutt

(n) When a man makes love to the grave of a lost lover in the rain, he is getting his mud nutt.

I.e. Saltburn funeral scene

Man 1: I’m supposed to visit my late wife tomorrow, but I’m afraid it’s going to rain.
Man 2: What!?! That’s good news! Bring some towels… you’re about to get your first mud nutt!!

I’m going to my late lovers grave because I gotta get that mud nutt.