So my friend taught me this, irl coz I don't have no friends in graal era.
It's quite funny when you think about it so here goes.
By mixing random facilities together and including a person close to the person you are abusing you have a good comeback.
Eg: By mixing "Your Mum" with "clothesline" you get:
I like to "hang" the clothes with your mum.
Make up some of your own. And they are not rude because they mean absolutely nothing!