oh really vs tush

oh really

• An exclamation of surprise or amazement. 

• Used other than figuratively or idiomatically: see oh, really. 

• Said in response to an obvious statement. 

tush

• An exclamation of contempt or rebuke. 

• To express contempt; rebuke. 

• To pull or drag a heavy object such as a tree or log. 

• The buttocks. 

• A tusk. 

• Nonsense; tosh. 

• A small tusk sometimes found on the female Indian elephant.