What in a red nipple cocktail?

The "Red Nipple" is not a recognized cocktail. It's possible the name is a slang term or a local concoction.

If you're looking for a cocktail with a similar name, it might be a variation of a "Red Snapper" which is a simple cocktail made with vodka, grapefruit juice, and sometimes a splash of grenadine.

Please provide more context if you can remember any details about this drink.