2.Being predjudiced against straight people or a person who doesn't like straight people.
"You're a bit of a faggot yerself"
"Stop being so heterophobic"
"What the fuck?"
2. "EEErgh look at that a straight man and woman holding hands arent they sick"
"dont diss me mates you is jealous you sad little heterophobic"
This can result from being treated like an outcast by peers all their lives or being mistreated, harassed, or threatened.
Quite similar to racism.
The most common heterophobic slur is "Breeder"...which implies that ALL straight people plan to have children (which isn't always the case).
Rick: What the hell man? I wouldn't say that about gay people, so what gives you the right to say that about us? Being heterophobic isn't going to eliminate homophobia...it'll just make things worse.