SpongeBob SquarePants is celebrating its 15th anniversary this week (it officially went to series July 17, 1999) and in those 15 years SpongeBob has found himself treading into some pretty risqué territory. The writers and animators have to be clever about the adult jokes they slip into the show, and many of them your underdeveloped young mind might have missed the first time around. 

Then again, maybe the internet is just seeing what its perverted mind wants to see. You be the judge...

 

1. Strange looking balloon SpongeBob has there. 

undefined

Source: elitedaily

2. Perfect joke. 

undefined

Source: maishasalam

3. Hmm, whatever could that big RED blimp represent? 

undefined

Source: maishasalam

4. Nothing like a well-placed prison sex joke. 

 undefined

Source: buzzfeed

5. Squidward exploring a little too much with that vacuum cleaner?

 undefined

Source: ruinedchildhood

6. Clearly busted watching sea porn. 

 undefined

Source: funnyjunk

7. Nose, finger or ???

 undefined

Source: dudelol

8. Mr. Krabs is relieved he'll at least have nice cleavage. 

undefined

Source: maishasalam

9. The sand eventually becomes a lamp, but there's definitely a brief moment when it's going in a more sexual direction. 

 undefined

Source: gifyoutube

10. A blatant prostitution joke. 

undefined

Source: imgur

11. An apology cake with a nice STD joke slipped in. 

undefined

Source: rewards4mom

12. A well-placed boner joke. 

undefined

Source: maishasalam

13. Let's talk about how unhygienic Krusty Krab's location in bikini bottom really sounds. 

 undefined

Source: spongevideos

 14. Patrick's "genius" is showing.

15. Finally, an amazingly dirty joke the writers were able to sneak in courtesy of Squidward. 

So, dirty jokes that Nickelodeon slipped past the censors or merely innocent cartoons? Sound off in the comments.