PC means politically correct. According to wikipedia[0], this is defined as "used to describe language, policies, or measures that are intended primarily not to offend or disadvantage any particular group of people in society." In short, thinking before you speak because words have consequences and can make people feel things.

SJW means social justice warrior. It carries a negative connotation, being defined[1] as "[carrying] implications of pursuing personal validation rather than any deep-seated conviction, and being engaged in disingenuous social justice arguments or activism to raise personal reputation."

A safe space is somewhere "individuals who feel marginalized [can] come together to communicate regarding their experiences with their perceived marginalization."[2] This originated so that members of the lgbt+ community could talk freely and not feel like they would be persecuted for doing so. People today sometimes use the term to refer to places where they cannot be openly hateful, citing a violation of free speech.

A trigger is something that can cause someone to recall a previous trauma that they have experienced. Examples could be descriptions or portrayals of rape, graphic violence, suicide, or blood. Not all triggers are this directly connected to what people have experienced, but these are what people usually use in trigger warnings. Trigger warnings are little things saying "hey, there's some material following that may potentially trigger memories of trauma."

Microaggressions refer to actions that are not directly aggressive to a member of a marginalized group, but are still hurtful. They can be defined[3] as "rooted in racism, sexism, or discrimination based on nationality or sexual orientation. [They] can be delivered casually or even unconsciously." Examples could be sexist jokes, purposeful discrimination based on race, or misgendering trans people.

Some people use these terms to say that people today are so sensitive, it's just words, etc. Most of those people are not members of any marginalized groups.

[0]:https://www.wikiwand.com/en/Political_correctness [1]:https://www.wikiwand.com/en/Social_justice_warrior [2]:https://www.wikiwand.com/en/Safe-space [3]:http://qz.com/787504/what-exactly-is-a-microaggression-let-t...

pc=politically correct

sjw=social justice warrior

trigger-warning=just google it. there are people that go in panic when they hear certain stuff (kinda insane really)

safe space= a place that protects you from words that trigger you

micro aggresion= normal aggresion is hitting someone example, micro aggresion is looking wrong, or saying something ~"bad"~

a good example: watch the "hugh mungus" fenomen (original video and many reactions like https://www.youtube.com/watch?v=4aVna3HohXI )

PC: Politically Correct SJW: Social Justice Warrior

It is the flavour of the year political topics maintained by a small percentage of college students. It'll soon fade from those buzzwords and take on a new ideology. Due to the internet, it seems like much bigger of an issue than it really is.