Haters gonna hate

[Becky]

A phrase that represents ones complete and total disregard of anothers negative comment towards the original person.

[Tina]

A colloquial saying. It means that people who dont like you will always find a reason to dislike you, no matter how stupid that reason may be.

[Jessica]

Dissenters will inevitably abhor

[Mark Zuckerberg]

Usually used as a comeback at a person who expresses an opinion that the user of the phrase disagrees with and/or feel personally offended by, often for completely irrational reasons.
If it used in real life, it is often accompanied by that person strutting away as if they had just destroyed you with witty and rational arguments.
This phrase is rarely used by anybody above the age of 15 and with an IQ above 95.

[Britney]

Stated by Dave Chappelle portraying R. Kelley in the music video [Piss on you]

[Little_Girl]

An expression of complete indifference to the targets opinions.

A pathetic attempt at a witty comeback, most commonly used by Deviantart/Youtube users who are unable to stand criticism.

Originally, this term was used sparingly, and only when it truly stung, much like Thats what she said. However, like Thats what she said, it has been spammed so far into the ground by the aforementioned artists that its simply pathetic.

[Britney]

Mantra for those unwilling or unable to accept any kind of criticism, or simply too mentally deficient to come up with an articulate response

[Becky]

What people say when caught in the act of doing something ludicrously stupid or otherwise wack.

It implies that the criticism their acts receive is due not to their own stupidity and [naffness], but instead to some unexplained enmity on the part of whoever points it out.