(noun) a person who uses intimidation, accusations, threats and/or shouting in order to prevent others from saying or doing something they find offensive.

These people exercise their own right to free speech in order to limit the free speech of those with whom they disagree.
She shouts profanity at her professor and threatens to get him fired if he does not support the banning of "offensive" Halloween costumes. She is a safe space screamer.
by ubiquitousdiabolus January 26, 2016
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