doul, n. — Green’s Dictionary of Slang

doul n.

[unused beyond these glossaries; word is in fact an erroneous reading of Marples Public School Sl. (1940) where he lists doul, dowl (Shrewsbury [school]). Synonymous with fag, from the Greek doulos, a slave]

(US gay) a very young homosexual man.

1965		Guild Dict. Homosexual Terms 12: doul (n.): A very young homosexual.
1972		B. Rodgers Queens’ Vernacular.