wane Share definition Flag Child, infant, baby. Used in parts of Donegal and Northern Ireland. Probably come from "wee one". Also sometimes written as "wayne" or "wean". "The wanes are asleep." "Stop acting like a big wane." wane by CiaramcN November 15, 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