Shabba is clearly a word of it's mystery. Some may have heard it while walking down the street and see a car passing by with joyful inhabitants with music screaming "Shabba!", which may seem have no context at all or thinking it's a funny made up toddler word which was used in a known rap song, who's somebody wearing 8 gold chains would be called a "Shabba" , from a little while ago...
"Shabba" could be just any subjective word with 2 vowels with an exotic taste behind the meaning.. or it's just...
Originally from it's prominence, an reggae dance hall artist has it in his name. Plainly called Shabba Ranks. And he wasn't just anyone with such name, his known work in music made his name so popular and outstanding. He originally took the name from 2 famous gangsters called "Shabba" and inserted it into his name. How he made his name anyways so popular? In his famous signature songs you can hear out him shouting his name particularly, which makes fans loving to shout it too...
Now you can either define it somebody's a Shabba Ranks fan or he is saying it out of context. (Or he has an stroke..)