Flamboyant is another word for gay; as in colorful, vibrant, ect.
It is also often used in association to the word "gay" as in a fairy, fruity guy, homosexual.
Used more towards men than woman.
Which in a way makes sense since most gay men are very flamboyant, like Jeffrey star for instance, with his hot pink hair and super long eye lashes.
"He's very flamboyant, I think he might be gay."