The highest state of organization and readiness. Not too be confused with NOT having your shit wired tight, the opposite of having your shit wired tight.
#1 Big Jay Cliburn showed up at the island a day early with a carton of Winston cigarettes, 10 cases of light beer from Milwaukee's Best (iced down), eggs, bacon, a Mapp gas torch, and a .45; that guy has his SHIT WIRED TIGHT (SWT) unlike his son aka JUNIOR aka SIMBA aka Littles.
#2 de Roode and Stallings showed up with all of their gear at the boat dock on time with beer iced down, tenderloins marinating and fishing gear rigged.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.