wiggy adjective3 •(slang) Crazy.SCULLY: All I see are recordings of cable news shows. They're all dated and in chronological order. You know, that's what Patnik was watching at the hospital when he went all wiggy. — 1996 •(slang) Uninhibited.“I thought I was pretty wiggy,” Mr. Baldessari said, “but she was wiggier than I was.” — 2007 •Wiglike. formswiggier · wiggiest