gone pecan
n.— «Aucoin reminds Burke that, if he doesn’t have copies of the betting sheets by Tuesday, “I’m a gone pecan.”» —“Tapes of secret phone calls center on Connick’s involvement” by Joe Gyan Jr. Baton Rouge State Times (La.) June 28, 1990. (source: Double-Tongued Dictionary)
Further reading
How do you pronounce pecan? Is it pee-KAHN or PEE-kan? And why are there different pronunciations of the name of this nut? The word pecan was borrowed into English more than once, and from numerous Native American languages that had variations on...
The words tough, through, and dough all end in O-U-G-H. So why don’t they rhyme? A lively new book addresses the many quirks of English by explaining the history of words and phrases. And: have you ever been in a situation where a group makes...