dra någonting gammalt över dig
Expression used here and there by Most People
Why tell someone to simply go away when you can make them look stupid at the same time? "Drag something old over yourself" you can yell at someone, and rejoice in the thought of how utterly embarrassed they'll feel with an old blanket on their head.
"Gå bort! Dra någonting gamalt över dig!"
"Go away! Drag something old over yourself!"
3 out of 7 Swedish speakers have heard this