Definitions by jdizzledinmypants

Not in THIS house 

"Not in THIS house" is a phrase used to let someone know that whatever they're doing/saying is highly inappropriate. Often used in a joking manner.

Tommy is saying goodnight to his [girlfriend at his parents house. An act which his parents mistake for him having sex. His mom pulls him aside and yells "Not in THIS house!"

John: "Dude your sister is so hot!"
Jack: "Not in THIS house!"

Not in THIS house by jdizzledinmypants January 17, 2009