fandango

Concise Oxford English Dictionary © 2008 Oxford University Press:
fandango /fanˈdaŋgəʊ/

▶noun (pl. fandangoes or fandangos)

• 1 a lively Spanish dance for two people, typically accompanied by castanets or tambourine.

• 2 an elaborate or complicated process or activity.

– origin C18: Sp., of unknown origin.