The most comprehensive online collection of UK street, road, and grime slang - authentic definitions, real examples, and cross-linked meanings from the culture. The only dictionary that shells itself.
Certi / Certified
adjective
Genuinely Authentic;
Used to say someone or something is fully legit, trustworthy or real, with no pretending or fakeness. Common in road and grime circles to vouch for a person’s reputation, quality, or status. “Certified” often shortened to “certi” in everyday chat.