Lazy Parrot 

Occurence in which a man places his genitals on someone's shoulder unknowingly. Often occurs from behind, while the individual is sitting on a couch or chair. May also occur between a deaf couple to initiate a sexual encounter.

Steve surprised Dan with a lazy parrot while he was sleeping on the couch.

My older brother held down my buddy and gave him a lazy parrot. His nut sack rolled off his shoulder and hit him in the mouth.

Lazy Parrot by Chicago Joey Biscuits October 24, 2011