Expression UK radio hosts and MCs use to shout out to friends/fans

I notice this mainly in drum ‘n’ bass/grime/dubstep radio shows from UK where an MC or the host frequently talks over the tune. Similar to terms like ‘shout out to xxx’ or ‘big up xxx’, where xxx denotes a fellow artist/listener/twitter user, they greet them with an expression that sounds to me like ‘anti’, ‘n-type’ or ‘entire’.

What are they actually saying, what does it mean, where does it originate from?

Example: https://youtu.be/U6mIumn0Fck?t=15m42s

I assume this is urban UK slang because I haven’t noticed it anywhere else.

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