An individual that consumes cardboard on a daily basis solely for the purpose of filling their dietry and nutritional needs. Normally someone who can not afford to buy anything of real sustinence.
Josh John went to Greggs and bought some chicken goujons (well, well, well), instead he deciced to eat the box, what a cardboard muncher.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.