Somebody who says that they hate something (usually related to musicians, movies, TV shows etc.) but has never actually seen or heard the aforementioned thing. They usually just read a bunch of other people's comments online and decide that they're going to feel that way now because everyone else does.
"Uh, Nickelback are literally the worst band ever. All their music is just generic"
"Dude, have you ever actually listened to any of their albums or songs?"
"Uh, no I haven't"
"Then you're being a bandwagon hater".
Someone with authority disliking something you like (something personal).
My sister is such a hater boss.
Someone who hates to the sixth power.
I have a friend that is a diabolical hater of LeBron James' success.
A person who hates when people curse and thinks it’s annoying.
This kid is a cursing hater, don’t curse when he is there.
A countermeasure to Beat a furry hater hater day. takes place on November 30th. Beat any furry hater you know, and they cannot fight back.
Furry hater: Fuck, they made a countermeasure to our countermeasure?
Furry hater hater hater: Yes we fucking did. Now get ready to die on Beat a furry hater hater hater day.