Like making snow angels, on your bed.
I'll never amount to anything. I'm only good at making bed angels.
Making 'snow angels' on a bed. Can be used against the owner of said bed by threatening to perform Bed Angels while still dripping wet from the shower. Extra evil if still covered in soap suds.
Be warned. Those performing bed angels are momentarily vulnerable to having their clothes stolen by bed owner in retaliation.
(couple in the shower) Stop smacking my ass or I'll do bed angels!