A body of words used by homosexuals which may be unclear or foreign to the straights.
Ryan exercised his expansive homocabulary when describing his LA gaycation and made all the straights rush to urbandictionary.com to figure out wtf he was saying.
Jocularly, a person who prefers to play musical instruments of the same class: sopranino/soprano/alto/tenor/baritone/bass/contrabass/subcontrabass saxophones, for example, but doesn't necessarily have to be saxophones.