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1.
The act of performing fellatio.
Your sister was slob knobbing all night long!
by Cooter Brown October 29, 2002
 
2.
When a woman performs oral sex to a man, and during this her mouth is salivating heavily on the penis.Intensive dripping wet blowjob.
Last night my girl was slobknobbing my cock!
by person with def August 06, 2009