tinker's damn（n.）
"something slight and worthless," colloquial, suggested by 1813 (tinker's d--n; also tinker's curse, probably euphemistic; in print with damn by 1823). See tinker (n.). It is an intensification in phrases such as not give or care a damn. It may preserve a reputation for free and casual use of profanity as well as the pejorative reputation of tinkers for rude work. Since 1877 an elaborate but baseless derivation claims the second word is dam (n.1).
"Pugh, how you talk, man," cried a fifth, "fellows in fine coats will do dirtier work than this, when they are put to their shifts." ["]Will they, by G--!" cried a sixth, "then they a'n't worth a pedlar's curse!" "You mean a tinker's curse, friend!" shouted a seventh. [D.W. Paynter, "History and Adventures of Godfrey Ranger," 1813]
该词起源时间：1823年