A koala bear sneaks into a prostitute's apartment through a window and starts to eat her out. She just starts to get into it and then the koala stops and starts to exit the way he came in.

"Hey, Mr. koala bear," she said, "I'm a prostitute, and so I'll need my money."

The koala bear looked at her confusedly. So she got a dictionary and looked up the word "prostitute." It said "A woman who sells her body for cash."

The koala bear took the dictionary from her and looked up the term "koala bear." It said, "An Australian mammal who eats bushes and leaves."