Torgue Slot Machine or 'Fully Torgued Jackpot' machines are interactive objects introduced in Mr. Tiny Tina's Lootsplosion Slot Machine was introduced in Tiny Tina's Assault on Dragon Keep. Slot machines are interactive objects introduced in Borderlands 2.They can drop anything from weapons, to a live grenade depending on the result. The cost per spin depends on story-line progression. Completing this challenge is purely down to random chance and will likely take many spins of the slots.
The Lucky Shot slot machines are located in Moxxi's bar in Sanctuary. Is a challenge to get either three triple Eridium bars or three Vault symbols on the Lucky Shot slot machines.