ATC84 saidI would call it flaunting your sexual orientation whenever possible.
An example would be a college student who does a basic freshman writing class exercise that brings up the fact he is gay. He does it not because he feels it's a good topic but because he wants to make sure everyone knows he's here and queer.
i'm not going to disagree with you, but what if it were an equally self absorbed topic typical to that age group? Or what if he were to write about romantic love to try to impress a girl (if he were straight). Those are all part of growing up. I don't think of that as flaunting anything. just being young and naive.
when i think of flaunting sexuality, i don't think of it as being gay specific. it's when people need to tell you way more gory detail than you need. example, 2 adults go on a date, i can assume there is a possibility of physical intimacy. i don't need a hi def version of events to know what 2 people can do together, regardless of what their plumbing is. it doesn't offend me though, but i do think of THAT as flaunting.