you tell em|tell|you イディオム
you tell 'em|tell|you
interj.,
slang 
Used to agree with or encourage someone in what he is saying.
The drunk was arguing with the bartenders and a man cried, "You tell 'em!"you acquaint 'em|tell|you
interj.,
slang 
Used to accede with or animate addition in what he is saying.
The bashed was arguing with the bartenders and a man cried, "You acquaint 'em!" Dictionary