Green’s Dictionary of Slang

tango pirate n.

(US) a gigolo.

1915		Dly Arkansas Gaz. (Little Rock, AR) 2 June 6/3: Some of the tango pirates had gone so far as tp establish a sort of business in hiring themselves out to girls and young women.
1916		O.O. McIntyre New York Day by Day 28 Mar. [synd. col.] The debutantes, the tango worms, the vers librists, the Ritz loungers.
1918		‘Commander’ Clear the Decks! 16: The local bush league had [...] dubbed him a tango-lizard.
2003		R.F. Thompson in Boston Sun. Globe 9 Feb. in Yale Bulletin and Calendar 28 Feb. XXXI:20 🌐 [Performer Rudolf Valentino] was what’s called a ‘tango pirate.’.