I agree:
'When you are plumb tuckered out, plumb is used as an intensifier, and tuckered out has been around in American vernacular since at least 1839, when the phrase was published in a newspaper — the Wisconsin Enquirer — “I reckoned to have got to the tavern by sundown, but I haven’t, as I’m prodigiously tuckered out.”
And this from the more polished Atlantic Monthly, founded in 1857: “She then informed me that the first time she had mounted the colt he had nearly bucked her to pieces; he had jumped and jounced till she was plum(b) tuckered out before he had given up.”'
Seems some Wisconsin and Atlantic coast history so a Wisconsin vs Cornell match, sure there could be some plumb tuckering.