Scaring someone in order to cause them to make the home-alone-face, and quickly inserting one's penis in said Home-alone-face, in such a fashion as to receive fellatio.
Person 1: Did you hear what Alec did?
Person 2: No. What?
Person 1: He pretended to break into his girlfriend's house and scared the shit out of her so he could get a
Home-Alone-BJ.
by Titonya October 24, 2011
Get the Home-Alone-BJ mug.