Thicc cobb Share definition Flag An above average sized penis. Baby Boomer: I hooked up with a Gen Z cyber twink from this Geek Squad and he had a thicc cobb. Millennial: Nice bro. Thicc cobb by Xx_zer0c00l_xX June 1, 2019 0 0 Get merch Get the Thicc cobb mug. Buy Now — $32.95 See more merch