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tightfisted; stingy; miserly; small-minded
みみっちい金の使い方をする人だ。
That person is stingy with money.
割り勘で一円単位まで計算する彼はみみっちかった。
He was stingy, calculating the split bill down to the last yen.
節約と倹約は違うし、みみっちくない。
Saving and frugality are different, and it is not being stingy.