noun

• (by extension) Any combination formed by layering one type of material between two layers of some other material.
• (UK) A layer cake or sandwich cake.
  "[…] our local agricultural fair in Warwickshire even has a category for Victoria sandwiches baked by male bakers."
• (archaic) A sandwichman (one who wears a sandwich board).
  "We have, and not so very long ago, seen women employed as 'sandwiches'."

verb

• (transitive) To place (an item) physically between two other, usually flat, items.
  "We saw a few Gresley Moguls on goods, as a limited amount of freight traffic was sandwiched in even on this busy day."
• (transitive, figuratively) To put or set between two other events in time.
  "Street BASIC is becoming the language taught in junior high; it is sandwiched between Logo, which is taught in elementary school, and Pascal, which is taught in high school."
• (transitive, sex) To double penetrate.
  "They sandwiched her, the footballer at her back, his dick tucked into the perfect seam of her ass as he fingered her pussy while the shorter, leaner, covered-in-tattoos Monsieur Artiste kissed her and pinched her nipples"
• (transitive, informal) To feed sandwiches to.
  "But one or two evil-disposed characters muttered they might be sure the lady had her own turn to serve, and they might be sure they wasn't "teaed and muffined and sandwiched for nothing!""

adj

• (US) Of a meal or serving size that is smaller than a dinner.