Noun - A contraction of "Cock-gobbler" or "Cum-gobbler" for a woman who performs copious oral sex on multiple male partners (although not neccessarily all at once).
also: verb - to C'obble
Dave: Dude, did you hear about Amie? She totally gave head to, like, twelve dudes last night!
Eric: Yeah, that girl is such a C'obbler.