"Jar" - According to the national Tasmanian language, Jar means huge or massive.
"Vie" - Is defined in the National Hobart Dictionary as meaning muscles, muscle definition/10, mass, bulk or extreme tonage.
Today, Jarvie can be loosely translated in English to mean: "Do You Even Lift?"
Boy 2: Yeah man I'm trying to go full Jarvie.
Boy 3: Full Jarvie?
Boy 77: Full Jarvie.
Boy 180397: Never go full Jarvie.