Putpocketing is a challenge on Impractical Jokers in which the jokers have to sneak pencils into either the carts, pockets or anything that can hold an item onto unsuspecting grocery shoppers. Whoever gets the most pencils onto a shopper wins and the other three jokers lose. This challenge happened in Season Two's Down in the Dump and Season Four's Sneaking Number Twos, Going Number One. In the Season Six finale, G.I. Jokers, the rules are the same, but instead of putting pencils on unsuspecting shoppers, the Jokers have to, instead, use flags.
Down in the Dump
Sneaking Number Twos, Going Number One