Describing when a person who has recently broke a relationship off is avoiding their ex to escape awkwardness between the two.
Tom: Bill, what are you doing sitting underneath this bush?
Bill: Oh, umm.. I was just looking at the leaves.
Tom: You liar...You're ex-caping because Lydia is sitting at our table!
Bill: Dude, I just can't be around her after Saturday!
When a male hangs on to the back of another (preferably bigger) male. As this person walks, the movement makes the one who is man-caping sway back and forth in a humping motion, making it appear as if he were a cape. This could be done with or without pants.
When Bill was too drunk to walk, Joseph carried him on his back and Bill started man-caping the poor dude.