Q: What is the difference between a tire and 365 condoms?
A: One is a good year, one is a great year.
Alright, listen up, buttercup. This joke is all about wordplay. You see, a "Goodyear" is a brand of tire. But "a great year" means you've had a lot of sex... with 365 condoms worth. It's funny because you didn't know that. Most people think that you are an idiot.