Sucka is someone that is getting on your nerves or also sucka is a person who always get bodied
A ghetto slang term used back in late 1989s
References: HipHop
DJs and Rap Music.
It means a person a "Sucka" stating he or she mentally decieved, or easily decieved.
It literally means : Sucker
All you suckas.... or sucka MCs
Usually sang in some hiphop music