A female who makes sammiches. A sammich wench (sometimes shortened to sammwench) is often a woman who is under the impression that she has liberty, but who is truly enslaved by a hungry male friend.
I once had a Sammich wench. But then one day I sent her to the store for more bread, and she was never seen again.
Dude 1: I'm hungry.
Dude 2: Wanna sammich?
Dude 1: Do you have a sammich maker?
Dude 2: Hellz yea, my gf Jane!
*a few minutes later*
Jane: Here's your sammiches!
Dude 2: Good, now back to the kitchen!
sammich truck - a truck that drives around town (sort of like an ice cream truck) that has all types of bread, meats, cheeses, and all the condimets you could possibly think of.