Question: words that are very british?
Answer: Chuffed. When someone is chuffed, they are very pleased or happy about something. ... 
Knackered. Knackered (or sometimes “ready for the knackers yard”) means that someone is extremely tired. ... 
Bants. ... 
Cheeky. ... 
Fag. ... 
Cuppa. ... 
Bum. ... 
Mate.