A game that takes place usually over a meal or any social gathering in an attempt to get everyone to actually interact with each other as opposed to being glued to their smartphone screens. The rules are as followed.

Everyone in the group must give up their phones and place them in a pile, stacking them on top of one another. The goal is to then see who can go the longest without their device. Then, whoever caves first, must suffer the consequences of whatever punishment was decided on prior to the stacking. Say you are at a restaurant. Everyone would stack their phones in the middle of the table. It is agreed upon amongst the participants that whoever grabs their phone first must pay the bill.
Person A - "We're playing Phone Stack!"
(Everyone's phones are put in a stack in the middle of the table)
Person A - "Whoever grabs their phone first has to pay the bill!"
*Several minutes pass, and Person B's phone goes off, and he/she grabs their phone*
Person C - "Hah! You lost! You're payin' up!"
Person B - "****!"

Video Example: www.youtube.com/watch?v=GvugLZE0DFk
by vsms? March 19, 2013
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A game played at either a meal or in a group setting.

When at a meal, and everyone is on their phones, grab them and stack them face down in the center of the table. First to pick up their phone, pays the bill for all. If no one grabs it, everyone pays their part.

When in a group setting, grab the phones and stack them. Whoever grabs their phone must perform challenges, each group member gets to pick a challenge so in a group of 10, touching your phone would cause you to do 10 challenges. You may use your phone during the challenges but afterwards, it goes back on the stack.
*Everyone is texting at a group meal*
Person 1: "PHONE STACK!"
*Person 1 snatches all phones and stacks them face down*
Person 1: "first to touch pays the full bill"
by JWilde February 27, 2012
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