Lace having the pattern outlined with a thicker thread or a flat border made up of several such threads.

plural of trolley lace

plural of trolley problem

A type of thought experiment in ethics and psychology, involving ethical dilemmas of whether to sacrifice one person to save a larger number.

(informal, humorous, idiomatic) Having gone mad; insane.

Alternative spelling of trolley bus

plural of trolleybus

Resembling or characteristic of a trolley.

plural of trolleybus

(slang, humorous) An area of philosophy dealing with the kind of moral dilemma typified by the trolley problem of whether to sacrifice one person to save others.