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A way girls have of telling if guy's are jerks based on how perfect their fingernails are. Revealed to us men by a How I Met Your Mother Episode which also featured crazy eyes on girls.
Now I always cut my fingernails a little badly so girls won't see the jerk nails.
by Barman and Robin November 08, 2009

Words related to Jerk Nails

crazy eyes banging how i met your mother jerk nails