Someone who thinks he/ she is automatically a ninja, because they dropped their poptart/ waffle/ soap/ glass etc. and managed to catch it with their foot/ elbow/ knee/ forehead etc.
This is obviously not possible, seeing as a ninja would never drop something in the first place.
Joe: Man i just dropped the soap while i was in the shower, and caught it with my foot. Total Poptart Ninja! MLIA!
Pete: No. Your life is not average, and you most definitely are not a ninja, you are a disgrace to all ninja everywhere, seeing as a ninja would never drop something, or have the need to shower.