Four Inches 

1) Length of a very small penis.

2) Average penis size of a 12 year old boy.

I heard Suzie bought a vibrator because her boyfriend only has four inches down there.

Four Inches by Cappy1 June 17, 2004

Four inches 

Something that is mediocre, but there's nothing you can do about it; when a person isn't happy with something but will be polite and accept it. The word originates from the idea that a four inch penis really isn't okay, but a normal partner's response in the moment would be a polite, "oh, it's four inches? That's fine." It's the only appropriate reaction when you've already hit the point of no return in a situation and there's no un-awkward way to back out of it.

"This date I'm on is four inches, it's fine." "The hookup situation I'm in is four inches, it's fine."

Four inches by JGal May 24, 2015

Twenty Four inches 

The size of an extremely long, steroid enhanced penis. Caution, may enter the Fallopian Tube.

Twenty Four inches of pain, biznatch!

Twenty Four inches by Hung Lo February 5, 2005

Twenty Four inches 

two feet - what you have on the ends of your legs that you stand on

1) "could you do something for me?"
2) "you have twenty four inches! get off your ass and do it yourself!"

Twenty Four inches by Monstre December 14, 2008