tightwad

tightwad

slang A very stingy or miserly person. Sorry for being such a tightwad. I just have to be very careful with my money until I get my next paycheck. Maybe if the boss weren't a huge tightwad we could actually work with modern software for a change.
Farlex Dictionary of Idioms.

tight wad

n. a stingy person; a miser. (see also wad.) There’s no need to be such a tight wad.
See also: tight, wad
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • tight wad
  • closefisted
  • closefisted (with money)
  • tightfisted
  • mean enough to steal a penny off a dead man's eyes
  • mingy
  • the roof caves in
  • the roof falls in
  • it's too late for sorry
  • big-ticket