"Jerries" was a shortened form for "Germans" used by the allied soldiers during world war II. They used it because it was shorter and easier to say. Because you can't really say "Gers", the allies were saying "Jerries". There is no offensive or subliminal meaning on that word (unlike for "Krauts").
A shortened form of "Germans" that wasn't really any shorter but was a bit easier to say. You can't really say "Gers" so it became "Jerries". Not necessarily a racial slur, but Germansmay take offense to this.
Bill: "Hey lookit the Germans makin hot dogs over there."
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the USCoast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."