Green’s Dictionary of Slang

drag-out n.

[the loser, knocked unconscious, is dragged out of the way/room]
(US)

1. [early 19C+] a rough party, a brawl; also attrib.

2. [mid-19C] one who indulges in a fierce fight.

3. [late 19C] a dance.

4. [1920s] (US) a party held in the country, beyond the big city.