A catch-all insult used by conservatives, especially alt-right Trump supporters, to describe anyone who disagrees with their political views, or just anyone who takes issue with them acting like shitty human beings. Often used with or instead of: "cuck", "SJW", or "libtard".
You're upset that you're going to lose your healthcare because of Trump? Too bad, snowflake. We won the election and you lost. Get over it.
Used to describe people who are sensitive and overly emotional. Snowflakes can't handle criticism and often try to be someone they are not. Usually are fake and the type of "so-called friends" to stab you in the back.
Freya is such a snowflake, she began crying for no reason.