A person who is prone to enthusiastically swallowing large amounts of semen, particularly (though not exclusively) for financial renumeration. Originated in the late 80's British Army after a certain members passionate endeavours.
"Christ, it's been weeks since I busted a nut. Garry, get your chops round that. I don't want to see a drop spilt or it's a court martial for you"
Spunkguzzler: "With pleasure Sir!"