When you're suspicious or know that your gf/wife is cheating on you with another man. Dick = Mouse, Vagina = House
Bro: Yo man I just saw your wife out with this dude and kissing and hugging!!!
Capt'n: Dammit man! I have a Mouse in the House.
Capt'n: Dammit man! I have a Mouse in the House.
by Dudeyobruh July 19, 2017
Get the Mouse in the Housemug.