To ABC a lighter is to Adjust the Butane Control, or the little toggle that controls the size of the flame. If you remove the metal cover and lift the toggle off of the teeth of the wheel and back to the left, and then place it back on and push all the way to the right it will increase the size of the flame. Repeatedly doing this to produce a huge flame is known as ABCing a lighter (UK)

When you eat dirt for the first time and leave your family to build a shack in the woods