FIP

• (General American) IPA^(key): /fɪp/

FIP (plural FIPs)

1. (countable, Michigan, Northwest Indiana, derogatory) Acronym of fucking Illinois people; chiefly used by year-round inhabitants of tourist towns: a tourist to southwestern Michigan or northwestern Indiana lakeshore towns from the Chicago area; especially a wealthy such tourist.
   • 1988, Hank De Zutter, Pamela Little De Zutter, “Invasion of the FIPs: boom time in southwestern Michigan”, in Chicago Reader‎:

     Some local teens have taken to calling the weekend tourists FIPs--short for "Fucking Illinois People." One can even buy a FIP T-shirt in, of all places, a New Buffalo clothing store owned by radio comedian Steve Dahl.

   • 1992, Peter Kendall, “Michigan Residents Resist Letting Their Beach Towns Become Illinois”, in Chicago Tribune‎:

     "They're FIPs," he said. "They hold their noses up in the air."

2. (uncountable, veterinary medicine) Acronym of feline infectious peritonitis.

• IPF, PFI

FIP ?

1. Initialism of Fédération Internationale de Philatélie.