With the replacement of “GB” stickers with “UK” ones, I’ll soon be able to add another joke to my list of jokes that aged badly. I first read this in a joke book when I was a kid:
A young man gets his first car and his younger sister comes to look at it. “What’s this ‘L’ sticker for?” she asks.
“It stands for ‘Learning’,” replies man, “Because I’m still having driving lessons.”
Some time later, after he’s passed his test, the man is preparing to take a trip to France with his friends. His sister points to a sticker on his car. “Does this ‘GB’ mean you’re ‘Getting Better’?”