1 definition by Leftenant_Beej
Inasmuch is an HJ induces male ejaculation by stimulating with the hands and a BJ induces male ejaculation by stimulating with the mouth, a Buttjay induces it using the sweet, sweet butt.
Caroline was so into buttjays that when she sat around the house she literally sat around the house.
by Leftenant_Beej July 2, 2009