split hairsQUIBBLE, cavil, carp, niggle, chop logic, nit pick, pettifog
[TahlilGaran] Dictionary of Contemporary English ▲
split hairs v. phr. To find and argue about small and unimportant differences as if the differences are important.
John is always splitting hairs; he often starts an argument about something small and unimportant.
Don't split hairs about whose turn it is to wash the dishes and make the beds; let's work together and finish sooner. [TahlilGaran] English Idioms Dictionary ▲