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1.
"Hard in" is the female counterpart to a man's "hard on" otherwise being vaginally internally super aroused. This is a good thing.
I had such a hard in for him I was wet with excitement! OR She was a gorgeous woman and my inner lesbian got a hard in thinking about it!
by kinky-doll January 25, 2011
8 1
 
2.
A sex position founded in Allen Park. It requires three people, a pair of un-used underwear, and a can of SODA.
That girl looks like she wants the hardin.
Lets hardin with Joel.
by CHITOLOVEGAYLE December 07, 2010
12 11