This phrase is used to show a wide variety of emotions, such as excitement, anger,happiness, sadness, etc., to an extreme.
Hazel Grace Lancaster got the news that Augustus Waters had contacted Van Houten and squealed with excitement "What is this life?!"
by bandomtfiosfandomgirl November 02, 2014
An expression showing a dislike of a situation/object/thing
"Its raining and im out here in only a Tshirt and trousers:- What is this life?!?!"
by Ian Stannett January 03, 2006