American Heritage Dictionary
(3)
Century Dictionary
(5)
GNU Webster's 1913
WordNet
(4)
Elsewhere on the web
He's a independent old cuss--work if he damn good an' feels like it, an' if he don't he won't If you think you c'n tackle it, I'll have the blacksmith whittle you out a crutch, an' you c'n take that long-geared tote team an' make Hilarity in two days.— The Promise A Tale of the Great Northwest
I was too sleepy to give a cuss--they got mine, too And so the talk drifted among them.— The Promise A Tale of the Great Northwest
I ain't seen more than one or two that was worth a cuss--not a one I thought was good enough for my girl.— The Man Next Door
All he done was jus' set dar and cuss, and a heap of times you couldn't see nothin' for him to cuss 'bout.— Slave Narratives: A Folk History of Slavery in the United States From Interviews with Former Slaves Georgia Narratives, Part 2

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You can expect to see this word about twice a month.