fucktrouble 

A person who gives you that queasy, "I know it's going to end badly and he/she will stalk me to the end of my days"-feeling right before you go home and sleep with them – but you fuck them anyway

I knew she was fucktrouble but I banged her anyway, and now she's boiling my bunnies

fucktrouble by om@r.m@ssif November 9, 2016

funtrouble 

When someone always gets into trouble, but you know it’s always going to be fun too.

She knew how to have fun but always got in trouble, she was a bunch of funtrouble.

Do you want to go out tonight and get into some funtrouble?

“Oh no, here comes funtrouble.”

funtrouble by Dwaiisy September 11, 2020

fucktrousers 

First uttered by Steve Firth on Usenet (<[e-mail]>), this is simply another variant on all those fuck-<insert-noun-here> insults that people use.

Very good, don't you think?

Heck, you'll never know will you, fucktrousers?

fucktrousers by Harvey Denton January 11, 2004