Gay means when you are a man who likes men. Gay is not an insult in any way and shouldn't be used as one. Gay is the G in LGBTQ.
Patrick: "I'm gay for you Alex"
Alex: "Bro, I like you too"
Patrick: "Tubular."
Gay means a male likes other male.
Man1: Yo guess what.
Man2: What?
Man1: I am gay.
Man2: For real?
Man1: Yes.
When something bad happens and you don’t know what to call it.
Come on man, that racer cut me off. That’s gay.