wanker

British greeting, meaning the same as friend or "mate"

Person 1: Bruv you're such a wanker

Person 2: Meet at the back of tesco innit (for a friendly chat of course!)

Bellend

Bellend means beautiful or pretty in the UK.

Person A: You look like a bellend!
Person B: Aw thank you, you look pretty too!
Person A: No bunda styll.
Person B: I don't have a dog I know.