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1.
Indicates favorably the arrival of a person, thing or idea to any location.
Ladies and gentlemen, get up on your feet and make some noise because BOBBY BROWN is in the house.

(In this example, a music venue or television studio acts as the metaphorical "house")
by Mo Douglas December 18, 2011
30 1
 
2.
A laudatory term describing someone who is performing their particular task or form of entertainment particularly well.
"I could have skipped Maroon 5, honestly, but Counting Crows was in the HOUSE. I'm telling you, man."

"Another three-pointer? Bro's in the house tonight!"

"Rudy, don't quit now. I'm serious. You were doing so well, you were in the house!"
by Gamaliel87 August 26, 2008
44 33