Merriam-Webster's Collegiate® Dictionary, 11th Edition
SLOBBER
I. verb (slobbered; slobbering)
Etymology: Middle English sloberen to eat in a slovenly manner; akin to Low German slubberen to sip
Date: 1607
intransitive verb to let saliva dribble from the mouth ; drool , to indulge the feelings effusively and without restraint, transitive verb to smear with or as if with dribbling saliva or food, slobberer noun
II. noun
Date: circa 1755
saliva drooled from the mouth, driveling, sloppy, or incoherent utterance, slobbery adjective