Origins: The origin of the word and it's definition is very different from what it has become today. Supposedly, in a high school in Rockville, Maryland, there was a very obese student who used to sit all by himself in the Cafeteria and eat his lunch, which consisted of anything and everything that could be eaten. Fellow classmates called this boy a "Lunchbox" see "Lunchbox" for detailed defitinition]. The word evolved from there.
B.I had fifteen minutes to kill before class so i just lunched around in my car.
C.Yo dont play with that electrical socket YOURE LUNCHING
Checks pockets for cigarettes, "No I quit five years ago."
"Man, you are lunching"