In one Little Johnny joke, Ms. Smith reproves Johnny for making faces, saying that her mother told her as a child, that a face made ugly could freeze and stay as it was. Johnny replies, that she can't say that she wasn't forewarned. In another joke, Little Johnny provides the class with his example of a coincidence, namely how his mother and father both got married on the same day.
There is a Little Johnny story in which children tell the class what their fathers do, spell it, and then say what the fathers would give each child were they to come to class. After Jeff unsuccessfully attempts to spell "accountant," Johnny says that his father, a bookie, B-O-O-K-I-E, would give 20:1 odds that Jeff would never spell accountant. In another joke, the teacher asks why George Washington's father didn't punish him after he chopped down the cherry tree, especially since he admitted to having done it. In response, Little Johnny offers that maybe George still had the axe in his hand.
There are joke characters like Little Johnny in many different countries. France has its "Toto," Estonia its "Juku," Russia its "Vovochka" and Italy its "Pierino." Mexican stories have their "Pepito," jokes from the Netherlands feature "Jantje," and Poland has its "Jasio." "Pierino" or "Little Peter," in particular, became quite a famous character in jokes in Italy during the 1970s and 1980s.
Little Johnny is a young boy who asks embarrassing questions, and who at times seems highly sexually aware while at other times very innocent. He can also be somewhat clever.