fuster UK /ˈfʌstə/US /ˈfʌstɚ/verb 4noun 1forms 3 verb4 •To fuss; to meddle or micromanage.Real hep, my people. Fustering mother. Meddling sisters — 1954 •To fret, whine, or complain.'This looks interesting,' I said, to my still-fustering-about-what-he should-do brother. — 2013 •(Ireland) To fumble; to work clumsily. •To become marked with signs of age or decay.She will clean her cottage — though its condition of age and fustering decay may render it an almost impossible task. — 1954 noun1 •A saddle tree maker.There were some leather-workers, as 4 or 5 curriers or tanners, 2 kissers, 6 or 7 saddlers or fusters. — 1951 formsfustered · fustering · fusters