inbetweeners day 

adj. metonym. A day spent evading from one's otherwise usual responsibilities (work, school, babysitting etc) with one or more other people, in the pursuit of a more fun activity - typically drinking, vandalism of driveways and other such anti-social behaviour.

Inspired and popularised by Episode 2 Series 1 of the Channel 4 (UK) television show The Inbetweeners.

Me and the boys had an inbetweeners day last Thursday - it was great, we beat all the queues at Thorpe Park.

Dangerous Dave: Wagwan bruv, com'e'go do an inbetweeners day tomorrow.
Sensible Steve: No man, we got a conference call with the Washington office in the afternoon.
Dangerous Dave: Allow that shit man, we'll go Thornton Heath and chirpse some clunge innit.
Sensible Steve: Aight, safe.

Greg did not approve with the group's decision to have an inbetweener day on Thursday. What a bumder.

inbetweeners day by shauny fizzle July 15, 2010

Penis Inbetweenus

1) Aggressive punitive Act of sneaking into your own home, catching someone else fucking your wife/girlfriend, popping a Viagra, slamming a bottle of Jack Daniels, and then forcibly sodomizing him up the ass while he is still inside your lady. That man becomes the Penis Inbetweenus.

2) Urban dictionary editors who reject your submitted definitions!

Does Urban Dictionary editor's who reject definitions, creating rift between author and audience, can be a real Penis Inbetweenus...

Penis Inbetweenus by Mjolnir12982 February 28, 2018

Inbetweenie 

A person who is too fat for typical clothing stores, but too thin for plus-size clothing. For women, this is typically between size 14-20, with some exceptions depending on the store.

It's tough being an inbetweenie, I can't shop anywhere.

Inbetweenie by mspalm5daughters December 5, 2011

inbetweenie 

a belly button that is neither sticking in or out of your belly, not an innie or an outie, so it's an inbetweenie

that's a weird lookin bely button, what is it?
it's an inbetweenie

inbetweenie by goldstatueman July 15, 2015

Inbetweeny 

A woman or man that does not fall into the category as fat or skinny. In other words, the perfect body shape.

List of celebrity examples. Scarlett Johansson, Jennifer Aniston, Jake Ggyllenhaal, Beyonce, Britney Spears, Brad Pitt, Bradley Cooper, Gerard Butler, Reese Witherspoon, Nina Dobrev, Paul Wesley, Ian Somerhalder, and so on and so on.. all are inbetweeny.

1) Damn, that sexy woman is perfectly inbetweeny.

2) Taylor Swift is hot, but I wish she was more inbetweeny.

3) Im looking for a man who isn't too big or too small. Something inbetweeny.

Inbetweeny by XJadedAngelX May 5, 2010

inbetweenus 

The small area between your balls and your asshole

As I was wiping my ass, I got shit all over my inbetweenus.

inbetweenus by BD April 18, 2004

inbetween 

there is life, there is death, and there is acid.

in the inbetween there is life, death and acid.

inbetween by love laurie December 29, 2007