Ed, Edd n Eddy had a few, though some are innuendos(there are probably more but this is off the top of my head):
Homecooked Eds: When the Kankers were in Eddy's house Edd said "I fear their becoming amourous!" Eddy asks what that means, and 5 seconds later you hear a loud shrill and the Ed's leave in terror. After that episode I feared for the Eds everytime the Kankers caught them, since it was now debatable what they were REALLY doing to the Eds...(amourous definition: excited about sexual love or romance)
A Twist of Ed: When Lee proceeds to "kiss" Eddy in the beginning of the episode, he's in the shower and you hear her laughing before the screen shifts to outside the shower where you see his hand go down. It's not hard to guess what she was laughing about.
Ed Overboard: Before Edd, and Eddy go to rescue Ed from the Kankers, Eddy says "I'd swear, but standards won't let me".
Your Ed Here: Eddy kisses Edd in full public view!!!!! How on earth did that one get by?!
Postcards from Ed: Not sure if this really counts, but techincally Eddy did kill Plank's parents...
Out With the Old, In With the Ed Part 2: When the Eds, are trapped in the girls bathroom by the Kankers they recieve a lesson in "Touch Feely 101", I'd rather not visualize what the lesson was, but I think you can guess.