One partner defecates without wiping. Then before, during and/or after sexual intercourse this person will wipe the filthy anus on the second partner, like a chihuahua wipes on a carpet.
I didn't know my girlfriend was so kinky...she made me get a filthy chihuahua...I have a feeling we won't be together much longer.
by Laser Fight March 21, 2008
Get the Filthy Chihuahuamug.