1. a raincoat or mackintosh
Usage: informal; chiefly British
2. a man who controls or exploits a prostitute
Usage: slang; offensive

1. to flirt with or make advances toward someone
Usage: slang; informal

Examples

• He grabbed his mack before heading out into the rain.
• Don't forget to bring a mack if the weather forecast looks bad.
• He tried to mack on her at the party, but she wasn't interested.
• She macked with several people throughout the evening.