1) Out of this world
-AC Milan were playing football out of this world in the first half of the Champions League Final.
-This chocolate cake is out of this world.
-Michael's singing is out of this world
Definition: be extremely good or enjoyable
2) Nouveau riche
-The Nouveau riche in China love buying up property overseas.
-In 1960s Hong Kong, the then nouveau riche made their fortunes on the gambling and property industry.
-You know that Marcus is nouveau riche because he has ties of animal skins, if he was from old wealth he wouldn't need to be that showy.
Definition: People who have become rich recently and who buy expensive things in order to show off.
3) At loggerheads
-The twins were at loggerheads over who should have the bigger room.
-The Hatfields and McCoys were at loggerheads with each other over land.
-The great thing about solo travel is that you don't end up at loggerheads at which sights to see.
Definition: in conflict with someone, having reached an impasse
Etymology: This term may have come from some earlier meaning of loggerhead, referring either to a blockhead or stupid person, or to a long-handled iron poker with a bulb-shaped end that was heated in the fire and used to melt pitch. If it was the latter, it may have been alluded to as a weapon.