betweenis 

The distance between two cocks during dual penetration sex. Measured in millimeters.

Hey Earl, thanks for fucking my wife with me last night.... I bet there was only 5mm Betweenis.....

betweenis by MotoRooster October 12, 2007

betweenus 

Is the nether region between the genitalia and the butthole... see also: taint; grundle

i'm never riding an camel again, my betweenus is killing me.

betweenus by Swag Nasty March 8, 2017

Betweenis 

The choice at the end of the night between which weenis to use for a booty call.

Chessa was torn betweenis for JG or AP.

Betweenis by Maxurethra March 25, 2010

in-betweener

n. A turd that has come halfway out, and you don't know whether to force it the rest of the way out or suck it back in.

"I sat down to crap, and all I had was an in-betweener, so I sucked it back in.

in-betweener by waltermitty August 14, 2004

In-betweenie 

Somebody who is half black, and and half white.

1st guy: hey did you hear that Bob is an in-betweenie?
2nd guy: WHAT!?!?! im soooo going to be half racist to him.
1st guy: aren't you an in-betweenie?
2nd guy: maybe... *cries*

In-betweenie by the king of egypt December 7, 2010

Betweenie

A bikini waxing service that removes most, but not all, of the down there hair

I am going to the spa to get my betweenie. See you at the beach tomorrow

Betweenie by Katey456 December 29, 2009

in betweener weiner 

The man in a 2 girls 1 guy "roommate" situation, particularly if the man is between the 2 girls.

Victor is the in betweener weiner in Joanna and Betsy's "roommate" situation.

in betweener weiner by Uhc July 2, 2009