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"Protostar" can be used as a noun or a verb. A Protostar is a retarded faggot, usually a micropenis cuck. To be Protostar'd means you get called out by some popular retard on social media, primarily Twitter.
Person 1: "Yo dude I think you got called out on Twitter again."
Person 2: "Oh god it's that Protostar fag again."
Person 1 "You my friend, just got Protostar'd."
via giphy
by radionite July 07, 2018
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