1835, "useless ornamentation," Southern U.S., perhaps an alteration of fandango.
Entries linking to fandangle
fandango n.
mid-18c., lively Spanish dance, the word of unknown etymology [OED says "alleged to be of negro origin"], of uncertain origin. Perhaps related to fado (Watkins traces both to Latin fari "to speak"); fado is lovely but not lively, so perhaps the link, if any, is thematic. By extension in American English, "any noisy entertainment."