Here's "couldn't care less". Notice that it appeared in 1946 while "could care less" appeared in 1996 in Literature.
(d) Colloq. phr. (I, etc.) couldn't care less : (I am, etc.) completely uninterested, utterly indifferent; freq. as phr. used attrib. Hence couldn't-care-less-ness.
1946 A. Phelps (title) ‘I couldn't care less.?br /> 1947 B. Marshall Red Danube vi. 53 The couldn't-care-less boys, the chaps who imagined that now that the war was over there was no need for further effort.
1947 People 22 June 2/4 If I suggest that it should be good because the book was by a top-line author she simply couldn't care less.
1955 Ess. in Crit. 5 76 Exhibiting a vulgar couldn't-carelessness.
1957 F. King Man on Rock iv. 120 The phrase he most used was ‘I couldn't care less? which seemed to sum up his character.
1965 Times Lit Suppl. 25 Nov. 1083/1 The couldn't-care-less attitude of people with little to lose.
(d) Colloq. phr. (I, etc.) couldn't care less : (I am, etc.) completely uninterested, utterly indifferent; freq. as phr. used attrib. Hence couldn't-care-less-ness.
1946 A. Phelps (title) ‘I couldn't care less.?br /> 1947 B. Marshall Red Danube vi. 53 The couldn't-care-less boys, the chaps who imagined that now that the war was over there was no need for further effort.
1947 People 22 June 2/4 If I suggest that it should be good because the book was by a top-line author she simply couldn't care less.
1955 Ess. in Crit. 5 76 Exhibiting a vulgar couldn't-carelessness.
1957 F. King Man on Rock iv. 120 The phrase he most used was ‘I couldn't care less? which seemed to sum up his character.
1965 Times Lit Suppl. 25 Nov. 1083/1 The couldn't-care-less attitude of people with little to lose.
Comment