The Simpsons may not be as good as it once was - but in its golden years, it was truly something special. It had something for all the family - as a kid I would laugh at Homer's slapstick humour and Bart's mischief, but for older viewers, there were also more complicated jokes that would make them laugh too.
However, there were some jokes in the show that parents were not too keen to explain to their children. The fast-paced nature of the show meant that a lot of the more adult jokes on the show would fly by without many of us noticing at all - but when you look back on it, you'll be surprised by how risqué some of the jokes they got away with were...
1. Smithers has some opinions on sea-men
"I think women and sea-men don't mix."
"Milhouse doesn't count."
If you don't get it, think about what the store's rhyming title used to be.
Not the most safe-for-work acronym.

"I'm going to the backseat of my car, with the woman I love - and I won't be back for ten minutes!"
Not quite the pencil-holder he was looking for.
At the 'Sleep Eazy Motel'... oh wait.

"Throbbing biological urges"
Not what he was looking for...

"Wow, now I see why they call you Miss Hoover."
They certainly have a way with words.
"When you're older you'll know better."
"What do you think mom and dad are doing right now?"
No way you'd have a clue what this was when you were little.
Next time you catch a re-run of The Simpsons, you'll be surprised by how many of them contain jokes you never got until now - and even more shocked when you realise how many dirty gags there are too!