not give a tinker's damn about (someone or something)

not give a tinker's damn about (someone or something)

rude slang To not care about, or have any interest in, someone or something. Fred does not give a tinker's damn about what anyone else thinks of him.
See also: damn, give, not
Farlex Dictionary of Idioms.

not give a tinker's damn

Fig. not to care at all. (A tinker's damn or dam may be a worthless curse from a tinker or a small dam or barrier used to contain molten metal.) I don't give a tinker's damn whether you go or not!
See also: damn, give, not
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

not give a tinker's damn

or

not give a tinker's cuss

INFORMAL, OLD-FASHIONED
If you say that you don't give a tinker's damn or don't give a tinker's cuss about something or someone, you mean that you do not care about them at all. Most of these people couldn't give a tinker's damn about the students. For 50 weeks of the year, the great British public couldn't give a tinker's cuss about tennis. Note: You can also say that someone or something is not worth a tinker's damn when you think they are of no value. The real truth is you haven't been worth a tinker's damn all week.
See also: damn, give, not
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • (I) hope not
  • hope not
  • not for a second
  • not for a minute
  • not for a moment
  • aint
  • ain't
  • not for a instant
  • not for a/one minute/moment/second/instant
  • by no means