No, "Yo dawg waz in the house" is not what would be described as "proper" English. The "in the house" part is correct spelling (although may not be considered correct grammar), but the "Yo dawg waz" is pure slang.
"Yo dawg" is a colloquial slang phrase commonly used in casual settings, especially among friends or in informal contexts. It may not be considered appropriate for formal or professional communication.
The dawg house nukka
George lucas' house dawg
Daddy's Girls - 2009 In the Dawg House - 2.2 was released on: USA:11 August 2009 Australia:1 March 2010
Run's House - 2005 Downward Facing Dawg 2-7 was released on: USA: 3 August 2006
Well we don' know, sorry dawg.
Daddy's Girls - 2009 In the Dawg House 2-2 was released on: USA: 11 August 2009 Australia: 1 March 2010
The battle of Lexington
Mr. Hound; The Dawg Pound; Tha Dogg Pound; Bozo the Clown
short dawg is 22
q-dawg is a penis inspection....
Skyler Gisondo does the voice of b-dawg