The "slot machine" term derives from the slots on the machine for inserting and retrieving coins. "Fruit machine" comes from the traditional fruit on the spinning reels such as lemons and cherries.Slot machine - Wikipediaen.wikipedia : wiki : Slot_machineaction joker slotphrasal verb\n\n : to find a place for (someone or something) in a schedule, plan, etc. I can slot you in at 2 p.m.Slot in Definition & Meaning - Merriam-Webstermerriam-webster : dictionaryaction joker slot huone casino