An openly gayman who has the outward mannerisms and demeanor of a woman; an openly gayguy whose gestures and manner are more normally associated with society's image of the female. Often used in a derisive or mocking way. Some gay men also use the term derogatively.
That effeminate gay guy throws "like a girl".
That effeminate gay guy swishes his hips like a woman when he walks.
That effeminate gay guy crosses his legs like a woman when he sits.