Mayonnaise, cheese, and ham

The act between two gay men, where Partner 1 climaxes in Partner 2's cheesy foreskin (Hence the mayonnaise and cheese).

Upon completing this act, Partner 2 proceeds to give a rimjob to Partner 1, completing the act with a face full of ham.

Keith: "So how did you and you husband celebrate your 10 year anniversary?"

Alex: "Oh, he gave me a mayonnaise, cheese, and ham!"

K: "So he only gave you a sandwich? How romantic."

A: "Yeah... A sandwich..."