A flawed idea in which one leaves a twinkie in his or her coat arm-hole at the end of winter. The problem arises when the person puts the coat on at the start of the next winter and the twinkie falls to the floor.
Craig: Hey Jim, something horrible happened this morning.
Jim: What is it? Do you have diarrhea again?
Craig: Yes I do, but that's not what I'm talking about. This morning I put on my coat and a twinkie fell out on the ground.
Jim: Twinkie arm fails again.
Craig: It always does. Whoever invented twinkie arm is a moooooron.