maniac maniac

noun

() an insane person  ( lunatic, madman, maniac )
an insane person

a person who has an obsession with or excessive enthusiasm for something  ( maniac )
a person who has an obsession with or excessive enthusiasm for something

adj

wildly disordered  ( maniac, maniacal )
wildly disordered
 a maniacal frenzy
a maniacal frenzy