To have sexual relations with a certain person. Shag. Bonk.
How nice is she!? I'd love to clatt her Bovobuar thogg. however she's plain Fexy, I don't stand a chance.
I clatt her all night last night, and when I woke up this morning we Clatt again!
He lied, he said she Clatt him.
Do you want to clatt me?