Frozen Tundra is a sex act where two Green Bay Packers fans (usually two large gay men) take turns shoving ice cubes into each other's assholes, then shit them out into each other's mouths.
After the Packers lost to the Chicago Bears in the playoffs, many Green Bay fans gave each other the Frozen Tundra to make themselves feel better.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.