12 inches unbuffed 

A 12 inch dick without the help of pills or other sexually enhancing drugs/items.
Derived from World of Warcraft and its "buffs"

John: I'M 12 INCHES UNBUFFED!
Phil: Damn! I'm jealous
Doug: LOL!

12 inches unbuffed by Unbuffed October 18, 2010

4-Inches 

Is enough....

4-Inches is enough...

4-Inches by Bibbytato November 1, 2020

6 inches 

A punishment particularly common in the Irish dancing community. Children who are victims of this evil practice are forced to lie down on their backs and raise their ankles six inches above the floor, putting a lot of strain on their abs, for between 30 seconds and 2 minutes.

Despite this, many teachers more often use the phrase as an empty threat.

You're eleven seconds late - you have to do 6 inches.

6 inches by graedion June 11, 2018

5.5 inches 

average penis girth by end of high school

size matters: 5.5 inches girth, 7.5 inches long, and as hard as possible. A long thick dick is no good if it's bendy

5.5 inches by heatherup size matters January 25, 2013

2 inches 

When the mans your after has a dick of approximately only 2 inches but your still tryna fuck

Oree likes that 2 inches over there.

2 inches by Secx expert 69 April 11, 2019

1 and a half inches 

Dreamnotfound.

if you know you know ;)

George: Oooooh 1 and a half inches dreammm~

1 and a half inches by Kiki's twin, kikiara August 28, 2020

36 Inches High Club 

The club you join when you have sex on a greyhound bus.

Guy 1: Tom fucked a chick on the way here. He joined the 36 Inches High Club

36 Inches High Club by The Eleventh Doctor November 1, 2010