I would have to say (in no particular order)

• Grim Adventures of Billy and Mandy+ Grimm & Evil
• Angela Anaconda
• Fairly Odd Parents
• Brak Show
• Ripping Friends
• Whats with Andy
• Mega Babies
• Quads!
• Clone High

Check out list

• Happy Tree Friends

I love them all but its like, how did this shit get on TV and then anywhere near children lmao. Thank god they found their respective ways to us.

Edit: if its only one, try to post a thumbnail image so people can either try to recognize it or know if the animation style is for them