Like a fascist, an idea or person who shows traits associated with this authoritarian form of governance. Dedicated nationalism, strict monitoring and surveillance of behaviour, interventionist politics are but a few possible indicators. Individuals are often characterised by a willingness to relinquish personal and social freedom for an increased sense of security. The word has been adopted/was introduced by various groups of 'conservative' people as a part of the "I'm just straight up with you bro" persona that characteristically masks deep held fears of uncertainty. And again, fascism, think Mussolini, this is not something to be proud to be associated with. Please!
That guy on YouTube who hates black people called himself a fashy goy, what the hell does that mean?