Wham sandwich is a way to describe one self or a friend if they are indeed wham. Smaller friends may stand in the middle of the much larger wham sandwiches and act as a filler. E.g. ham or salad.
Look at Ben he’s such a wham sandwich.
I wish I was a wham sandwich. I’m all but a slice of ham.
2 men who have both oral and anal sex together
is that conall and Ben? What a pair of wham sandwiches.