When a man willingly places his stomach against the wall while standing and then proceeds to pull his dick and balls back between his legs. His partner then kneels down and proceeds to give him fellatio. The act is similar in appearance to a hamster guzzling water from its sipper bottle. Not to be confused with the Reverse Hucklebuck which requires the recipient to be laying down.
When Matt wants to switch things up with his power bottom, his go to is the hamster guzzler!