What is a nip of whiskey called?

There isn't a specific, universally accepted term for a "nip" of whiskey.

However, here are some common terms you might hear:

* Shot: This is the most common term, especially in bars and pubs. It usually refers to a 1.5-ounce serving.

* Pour: This is a more general term that can refer to any amount of whiskey.

* Taste: This term suggests a small amount, maybe even just a sip, taken for the purpose of trying the whiskey.

* Sip: This is a small amount taken slowly, usually to savor the flavor.

Ultimately, the best way to describe a "nip" of whiskey would depend on the context and the specific amount you're talking about.