Someone who is syke-otic is completely obsessed and totally in love with Oliver Sykes, the lead singer of the band Bring Me The Horizon. Oli Sykes is completely and utterly beautiful and has an amazing screaming voice and normal voice with the hottest accent ever. Lots of usually female fans but also some male fans describe them selves as "syke-otic".
Jasmine: Charlotte, your so syke-otic! You have a whole wall of just oli Sykes pictures!