(US GOVERNMENT) Immigration and Naturalization Service: former agency of the US government responsible for the enforcement of immigration law, and the processing of visa/permit requests. The INS and its successor (see below) are justly famous for treating millions of hardworking, intelligent, and creative people with the most demeaning, barbaric sort of bureaucratic cruelty imaginable.

After the attacks of 11 September 2001, Congress passed a bill creating the Department of Homeland Security (DHS); the INS was split up into its enforcement functions (which became part of Immigration and Customs Enforcement (ICE) and its processing functions (Citizenship and Immigration Services, or CIS).

Prior to its dissolution in 2003, the INS was part of the Department of Justice. The CIS and ICE are both part of the DHS.
Because of its extraordinary power over the lives of millions of US nationals and residents, the Immigration and Naturalization Service gained lasting notoriety. Seven years after it was superseded by the CIS, most people associated visa regulations with the INS.

"Brother from Another Planet" was a brilliant parody of INS agent behavior.
by Primus Intra Pares June 16, 2010
Inferior Negroid Syndrome. This term only applies to African Americans. A group or single black person who behaves in an ignorant and stereotypical african american way.
"Did you see that guy in Taco Bell? He had a severe case of I.N.S."
by Steven Stoves November 13, 2007
Itchy Nose Syndrome. Side effect of taking pain killers.
Damn, I got some crazy INS, man.
by Tyler Morton December 19, 2008
Im Not Sorry.
Mike- sorry becky but INS....
Becky- Wha?...
Mike- *shakes head* Urban dictionary.
by ham ham. March 09, 2008
Itchy Nuts Syndrome. Word derived from living with Matt for seven months and no shaving cream.
"Dude, you got the INS."
by Jarrod Rouse February 04, 2006
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