pancock Share definition Flag when a penis resembles the dimensions of a silver dollar pancake, not to exceed three inches in length,or four inches wide. Man that fatass had a pancock so huge it barely fit in his boxers. pancock by 4thpostie March 30, 2009 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