[CIA Agent Smith is being briefed in Japan; he and Bullock are dressed like Geisha.]pune, or a play on words) is a form of word play where a word with more than one meaning is exploited to make a joke based on this double meaning. This can also take the form of substituting one word for a different, similarly sounding word. Usually done for humorous effect. For trope names that are puns go to Just for Pun. For tropes that are pun names of other tropes, you want Snowclones. These are very PUNNY.
Smith: Why are we dressed up like this?
Bullock: Because I thought we could be "Secret Asians".
Stan: A 16-hour flight for a bad pun? [grins] Yes. Yes.