Snack smuggling 

The act of sneaking in snacks (like in your pocket, coat, or a purse) (usually packaged candy) to a place that already sells snacks and candy and which either frowns upon or forbids people from bringing their own (since they want to sell you their usually very overpriced snacks).

Person 1: Hey I got each of us a bag of M&Ms from the theater snack counter, it set me back 8$ though.

Person 2: 8$?! Man you need to start snack smuggling, you would have saved 6$.

Snack smuggling by Forever Artist March 30, 2008