When one Weasley (from the Harry Potter series of books) gets atop another Weasley. This is a Weasley sandwich. They can contain any Weasley, but more commonly have a combination of the teenage sons. Most, but not all, Weasley sandwiches lead from one thing unto another.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life