A dirty joke in Polish- ("pieta" means "hell", "pizda" means the c word, "luk" means bow and "huj" is d---) there's a little boy in a class who has a very dirty mind and whom none of his teachers can stand. The class is playing a crossword puzzle that consists of names of body parts. One of the questions is a body part that starts on P and consists of 5 letters. Johnny is hopping up and down in his seat and waving his hand. The teacher ignores him. Johnny keeps yelling "Miss! Miss! Miss!" so the teacher finally calls on him. "Pieta!" yells Johnny.
The teacher is very relived and says "That's very good, son. I like your train of thinking!"
Johnny says "I got a question for you. What's long and springy and 3 letters long that every boy has?". The teacher grabs him by the collar, marches him out and spanks him.
Johnny screams "What did you do that for?!". The teacher says "You meant to say a dirty word, Johnny!". Johnny says "I meant bow!...but I like your train of thinking!"