“Girl inches” refer to when a girl thinks a guys dick is much bigger than it actually is. This is partly due to guys over exaggerating their size.
So when a girl sees a dick thats around 6 inches, she’ll think its 8 or 9.
Guy 1: I was with amy the other night, she really liked what I was packing

Guy 2: Maybe in girl inches..
by Leftonreplied November 10, 2019
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The extra inch of length a shaved penis appears to have over an unshaved one.
The optical inch my shaved cock has makes it look bigger.
by jer_ May 4, 2006
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a perfectly fine amount for a male to have. Do not be discouraged when woman laugh at your size as they do not even have 1 inch to start with.
Man, i whipped it out and she started laughing at my '5 Inches'.
by RealNiggaAndar May 31, 2018
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Something you say you have but don't.
I have 10 Inches.
by THE REAL 69 February 8, 2017
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When a big dick meets a not so big vagina. It's not how much got in but how much was left dry in the wind, never getting wet.
Joe: How did it go last night with the skank you met?
Jim: Well it went ok I guess. I still had about 4 dry inches to go when she said it hurt.
Joe: Man 4 dry? that sucks dude.
by Jumpingrat October 31, 2010
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Usually refers to the extra bit of piss that embarrassingly emerges, even after a vigorous shake.
9 times out of 10 this is after you've re-holstered the middle wicket resulting in an embarassing wet patch on the front of your trousers.
Rob: "HAHA! What the fuck is that wet patch on the front of yer jeans?? you incontinent fuckwit!"

Steve: "Oh fuck! That bastard Inch of piss again, i shook the old lad for well over a minute too."
by mightynimrod June 4, 2009
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"I am dead."
"At least your dick is bigger than average."
"But... I'm fucking dead."
"7 inches is pretty good."
by Cody_Nara January 10, 2017
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