Snowflake

Snowflake is a term used by sensitive people when they want to call other people sensitive
The people that use "Snowflake" in an argument either have nothing else to say because their argument was weak in the first place
Some people also call someone a snowflake when they have said something offensive, played it off as a joke, and then got sensitive when people called them out for it

Person1: what do you call a fat girl with a rape whistle- optimistic

Person2: dude, you aren't fucking funny. your joke isn't even original

Person1: shut the hell up you dumbass snowflake, go home and cry to your momma

Person2: ah, there it is. "Snowflake"

Person1: fuck you, you sensitive whore. Go fill your holes you cum bucket, I hope you get fucking raped