Webster's Revised Unabridged Dictionary · 1913

Fandango

Fandango , noun

[Sp. A name brought, together with the dance, from the West Indies to Spain.]

1.
A lively dance, in 3-8 or 6-8 time, much practiced in Spain and Spanish America. Also, the tune to which it is danced.
2.
A ball or general dance, as in Mexico. [Colloquial]