IDB Share definition Flag IDB = In Da' Butt Internet slang for anal sex started by the members at the Tweak3D Forums. Would you do her IDB? Hell yeah! Do you like it IDB? No. I'm not gay like you. IDB by Ivanolo July 27, 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