Atomic Lime Pie: The Key Lime flavor to end all Key Lime flavors! Vaping this you can just imagine being in the Las Vegas desert in the 50's. Eating a freshly baked Key Lime pie at the Atomic Cafe. Atomic Lime Pie is a butter pie-crusted Key Lime dessert with a citrus shock wave of sparkling lemon lime. Atomic Lime Pie is the Key Lime King!