jagon Share definition Flag The penis located on the right shoulder-blade of an alien. Comes from the episode of South Park when the cast finds out earth is just a reality show. Suck My Big Alien-ized Jagon! jagon by Zack-Cock Master! January 7, 2006 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