A variant on “What in tarnation?” which itself was a lightening-up of the word “damnation,” “thunderation” was popular in the United States back in the 1830’s and 40’s. It’s time for it to come back.
Thunderation! Who the hell tried to flush a roll of Scottowels down the loo again?!?
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.