freeballin Share definition Flag not wearing underwear under your clothes hence your balls have nothing to hold them back 1. dan freeman 2. you freeballin? nah.. not during school freeballin by GUARDROCKS September 21, 2004 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