Derogative for "gay" (like faggot). It is used also, between (male) friends, in the meaning of moron, asshole or similar, transmitting anger or
disappointment for
something, or just to mock.
(Una ragazza a un
ragazzo che non la bacia): Ma che sei frocio?
(A girl to a boy
who does not
kiss her): But what are you, a faggot?
(Tra amici): 'Sto frocio non m'ha passato le risposte dell'esame!
(Among -male- friends): This asshole didn't give me the exam's answers!