1. n. a toilet; a men’s restroom. The jake is just around the corner.
2. n. a stupid person, usually a male. Some loony jake told me we are going the wrong way.
3. mod. okay; satisfactory. If you get here by nine, it’ll be just jake.
4. n. illegal liquor. (Prohibition.) Why, there’s no jake around here. There’s a law against it, you know.
5. n. a police officer. (Possibly from sense 2) The jakes are coming. I can hear the sirens.