Green’s Dictionary of Slang

nigh enough n.

also near enough
[rhy. sl. = puff n. (3a)]

a homosexual male, esp. if a prostitute.

[UK]J. Curtis Gilt Kid 79: You’re a pouf. A bleeding nigh enuff it’s my belief.
[UK]J. Franklyn Dict. of Rhy. Sl. 100: near enough An alternative form of nigh enough.
[UK]R. Puxley Fresh Rabbit 82: Near Enough Puff (Homosexual).