I'll go first. it took me so long to learn these:
- Getting pissed= "To get drunk."
- A right bodge job= "A job that is poorly done."
- Spend a penny= "l need to use the bathroom."
- You're full of beans= "To be in high spirits."
- Bob's your uncle= 'Everything is alright. You're all set."
- Find any joy?= "Have you had any luck."
- Horses for courses= "Different people like or are made for different things."
- I'll give you a bell= "I'll call you on the phone later."
- That's pants= "that's nonsense."
Have you had any experience where you were confused by British slang?