An exclamation used as a compliment, especially if the person is considered very knowledgeable and has helped a person out in some way with little difficulty doing so.
A man helps a woman open a stuck jar through some clever means, she would declare: "That was easy! You in da house man!"
by Steve Savage September 08, 2005
In the house. What someone might proclaim when they have arrived at a formal business meeting....or even just a totally stoned out party
by Brendan April 06, 2003
In da house is in da local clink or minimum security work camp. Da big house is da state or federal slammer.
by Downstrike September 18, 2005