Similar to 'boots on the ground,' 'suits on the ground' means that the CIA or other clandestine non-military organizations are operating in a foreign country.
We about to invade Whatever-istan because there are suits on the ground.
Anne: In order to win the war we have decimate the country with 'boots on the ground'.
Bob: No we can just overthrow the dictator with 'suits on the ground'.
A trash bag with no handle and or no hinged lid, used for carrying clothes and other personal possessions. A heavy duty contractor bag is considered the Louis Vuitton of southie suitcases.
Sully: Damn Mickey you cheap Irish prick I see you got that southie suitcase, are you that poor?
Mickey: Naw Sully the wife caught me cheating last night, didn’t have time to grab my duffel. Mind if crash on your couch?