This is a joke that really confused me the first time I heard it:
What do you call a one-eyed dinosaur?
Do-you-think-he-saurus?
I am deliberately writing it as I heard it. Back then, I didn't know that in British English, "R" could be pronounced in places you wouldn't expect, such as "saw-(R)-us". So it's do-you-think-he-saw-us with a "saurus" at the end.