Pronounced "Lord Thundering Jesus" by most.
A versatile phrase in the Newfoundland dictionary that can be used in various ways.
Bill: Wheres 'da beers
Frank: Right 'ere b'y
Bill: Lard Tunderin Jaysus, 'bout time
Bill pulls into driveway and notices his house has been broken into.
Bill: 'da fuck?
Bill: Lard Tunderin Jaysus, They even took the ever-sweet margarine.