My guess is cockney because i can hear AH instead of ER "adven-tah" and a missing th at the end.
https://drive.google.com/file/d/1OferVRhnYbFQXLzpI5SeLbiCUqCXkL0o/view?usp=drivesdk
Yes, this one is cockney.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.