What is a slang word for federal agents?

There isn't really a widely accepted slang word for federal agents. The term "feds" is commonly used, but it's not always specific and can be considered informal or even negative in some contexts.

Here are some other options, depending on the context:

* G-men: This term is mostly a relic of the past and evokes a more classic, old-school image of federal agents.

* The Feds: A more formal, general term.

* The Bureau: This refers specifically to the FBI, but can be used in a broader sense to refer to federal law enforcement.

* The Man: This is a very general and often negative term, used to refer to any authority figure.

It's important to be mindful of the context and your audience when choosing any slang term, as some can be disrespectful or offensive.