1. n. counterfeit money. The bank teller spotted the funny money in the man’s deposit almost immediately.
2. n. military script; temporary or substitute money, good only in certain places. What am I going to do with all this funny money when I leave here? It’s no good anywhere else.
3. n. foreign currency. (Jocular.) We had better buy some gifts and get rid of some of this funny money before our flight.