fol-de-rol /ˈfɒl.də.ɹɒl/noun 3exclamation 1forms 2 noun3 •Nonsense. •Excessive efforts expended on a something trivial; much ado about nothing. •A gaudy thing of little value; a trinket. exclamation1 •Nonsense word traditional to English ballads and madrigals.Fol-de-rol and fiddle dee dee and fiddley faddley foddle. All the wishes in the world are poppycock and twaddle. — 1957 formsfol de rols · fol-de-rols