Definition of fleadh cheoil in English:
fleadh cheoil
(also fleadh ceoil)
noun ˈflɑː ˌkjəʊɪlˈflɑː ˌxjəʊɪl
Irish English A festival of Irish or Celtic music, dancing, and culture.
Origin
1970s; earliest use found in Mike Wallace (b. 1918). From Irish fleadh cheoil, lit. ‘feast of music’ from fleadh feast, drinking-bout + ceol music.