The muumuus with the buttons @muuvmentbyfee #muuvmentbyfee #muumuu # moomoo #kaftan #comfortablefashion Is there a word for this kind of Mexican mumu? : r Spanish Other House Dresses With Pockets Moo Moo Nightgown Short Sleeve Mumu Dress Lounge Poshmark Oudiya Womens Mumus House Dress Floral Print Short Sleeve Nightgowns Moomoo Dresses with Pockets, Women's, Size: Medium, Green So why do we call this a Muumuu? Well, linguistic spread & tourism, mostly. Your granny might have worn Muumuus as they were popularized in the US as house dresses, maternity wear & nightgowns, but Red MooMoo Dress SHANTELL'S GIFTED BOUTIQUE