The "slot machine" term derives from the slots on the machine for inserting and retrieving coins. "Fruit machine" comes from the traditional fruit
alano slot 3
on the spinning reels such as lemons and cherries.
Subject and Verb Slots. A sentence has two primary slots for inserting content: the subject slot and the verb slot. Readers naturally focus on the words in these slots and, rightfully, sense that the main information will be in them. [subject slot] + [verb slot]