1. When Rocko was chased with pitchforks for "liking rainbows."
2. When Ren and Stimpy, uh, did this:
3. When this "no ball playing" sign perfectly covered some naked old guy:
4. When Arnold and Helga were Baywatchin' while Arnold's grandpa smoked some reefer:
5. And when his grandpa made his love of weed really known:
6. When Grandpa Pickles was responsible for Pearl Harbor?
7. And when Arnold's grandpa beat the crap out of Hitler:
8. When Chocolate Boy "detoxed":
9. When Tommy had some anatomical questions for Lil:
10. When Miss Finster did this:
11. When Lou played Russian roulette for fun:
12. Or when he told the kids about his late-night movie tastes.
13. When Heffer and Filbert played "Spank the Monkey":
14. Or when Rocko and Heffer hung at The Chokey Chicken:
15. When Rocko had a brief stint as a phone sex operator:
16. When Rocko paid a visit to this doctor:
17. When Stinky was a part of the Illuminati:
18. When Timmy Turner learned he was a mistake:
19. And when this girl learned her parents had some deep regrets:
20. When Squidward had sex with a Krabby Patty:
21. Or when some bunnies got busy REAL fast:
22. When SpongeBob's, er, nose was poking out:
23. When Rocko accidentally touched a butt:
24. When SpongeBob possibly watched porn:
25. When Timmy may or may not have been jerking off:
26. When this happened:
27. When Wanda referenced WWI:
28. Or when Cosmo pissed off Tom Sawyer:
29. When the Animaniacs hung out with Prince:
30. When Ginger's mom hit on the plumber:
31. When this character existed:
32. When these babies talked about circumcised penises:
33. And when Stu Pickles had an existential breakdown:
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#2, #11 and #22 are actually fake (but are too funny to take out.)