Someone who has feelings and is apparently wrong for expressing them? A snowflake is anyone with a pulse, really. Any and everyone gets offended by things they don’t like.
Some Rando on the internet: I think racist jokes are funny
“Snowflake”: ok, but I don’t
Rando: oH My GoD, yOur suCh a SNowflake LikE why can’t I make My racist JoKes, ilL neVEr lAuGh agaiN, thIs GEnEraTiOnS so SENSITIVE