Here are some more examples for understating British humor.

„I am not spoiled, I am perfectly happy with the very best“ (Winston Churchill)

„What exactly is wrong with an elite?“ (Prince Charles)

„Put three Britons on an island and they will establish a class system.“

„No she is not a bragger(Angeber), tell her you´ve been to paradise and she will have a season ticket. Tell her you´ve got a headache and she will have a brain tumor.“