Irish name, usually means anti-social or sometimes dark thing.
A Ciaran is very anti-social, weird kinda guy, thinks kissing his mates without consent is funny.
Probably best to stay away from a Ciaran.
Ciaran being a jerk off ..and loser.. conveluted and always holds a grudge no matter what u say to him or how imperfect u are urself .. always always always holds the grudge meanspirited and prisonworthy