British slang for a homosexual. Primarily used for gay men, but is also appropriate to use for lesbians.

Example:
Guy 1: We were just joking around, right? Just a little lark. I don't even know what I was doing back there ... I mean, I know I'm not dodgey, and I'm sure you're not, either.
Guy 2: Well ... yes ... I am dodgey.
Guy 1: Oh shit! Fuck me ... I mean, don't ... oh shit, fuck me ...

dialogue from Get Real