cobb Share definition Flag Penis; though the term can be used in any fashion when referring to a human penis, it is most commonly used to describe an act of fellatio. Get over here and suck my cobb. cobb by P'tainz October 7, 2010 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug