Fed
Short for federal, referring to an employee or agency of the federal government. Traditionally associated with the FBI, a fed, or the feds (not to be confused with the Fed), can typically be used when referencing any formal apparatus of the federal government. Informally, fed can be used as a derogatory insult for an untrustworthy or un-loyal individual.
Example:
The feds audited the business and monitored their regulatory practices.
That boy gives me a weird feeling, he a fed.
The feds audited the business and monitored their regulatory practices.
That boy gives me a weird feeling, he a fed.