To argue about an inconsequential and trivial aspect of an issue
When you are accused of being forty-five minutes late for an appointment, you are splitting hairs to say that you were really only forty minutes late
by Rafael Nunes February 04, 2006
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When a man is about to urinate, and a hair or lint is resting on the opening to the urethra. This causes the sream of urine to split off in 2 seperate directions and, if not at a urinal, all over the bathroom. This will be to the much displeasure to the wife/girlfriend/other family member.
I had to take a huge piss this morning, but i had a splitting hair and hosed the entire toilet. The wife made me scrub the whole bathroom for 3 hours.
by ThePisssMaster October 28, 2009
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Vagina, pussy, twat, Etc...

Close relative of the Split Face Bald Shark!
I was walking drunk on the beach and almost stepped on a Split Face Hair Shark!
by RedWingsWin March 26, 2009
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Means that something is very fine, or that you feel excellent. If someone asks how you feel and you simply say "fine", you might just be saying it out of convention. Adding the "dog's hair split three ways" shows that you actually mean it.

Another form of the expression is "finer than a frog's hair split three ways", although literal frogs do not have hair.
by JCEG November 25, 2006
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When your old lady lays down and spreads the peach for ya.
Hey baby, how's about us splitting hairs and me giving you a good poke?
by September 14, 2020
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