A cheesy hampton is usually suffered by teenage blokes. They wake in the morning after dreaming about shagging some tart (or bloke) only to find they have stale sperm trapped around their dicks. Hampton Wick is a suburb in London, it is Cockney ryhming slang for Dick. Hence cheesy Hampton.
I say Roger, do you mind awfully and going to the bathroom and have a 'gentleman's wash. I can smell that Cheesy Hampton of yours, and it is fucking stinking out my house. Oh and please do not use my toothbrush whilst washing your pecker. Last time you were here, I had a mouthful of cheese you rotton bastard.