Tween 

Verb
Short for “Inbetween”; A tool featured across multiple animation platforms (such as Adobe Animate, Sticknodes, and Clip Studio Paint), used for generating pre animated frames in between user-made key frames, typically for the illusion of smoothness or to save time.

“I didn’t have enough time to manually animate the background, so I used Tween on the clouds.”

Tween by TheTotalMc January 20, 2022

Tween Wave 

On June 8, 2011, South Park brought attention to this pandemic of "shitty" music which is plaguing our world.

"A new music genre for the era of 2009 - 2012 (tweens)... If you have kids now, they're probably listening to it" - South Park s15e07

It's most notable list of mutated infants include Justin Beiber, Jonas Brothers, and the entire cast of Glee (except Jane Lynch).

Signs you are listening to Tween Wave music: When all you can hear is someone ripping ass into the microphone over a drumbeat. More precisely when it sounds like shit is spilling out of the speakers and puddling on the floor.

"Did you know we're living in the Tween time?... I guess it's the peroid between 2009 and 2012..." - redneck 1

"der I'd heard that." - redneck 2

"So they got this feller down at the bowling alley who gets up on stage and shits his britches.. " - 1

"what fer?" - 2

"I don't know, but he gets up there and strums a geetar and starts loadin' up his britches up like it's goin' out of style... It's like some sort of 'britches holocaust'... he calls it Tween Wave" - 1

Thanks South Park!

Tween Wave by Sir Deimos December 9, 2011

Tween Spastics 

The escalating sound produced by a large group of tweens. At first, the sound is a light chatter. Then it grows in intensity and the frequency changes to a squeal. Eventually the incoherent ramblings of these little pricks drowns out all ambient background sound until you get a massive migraine.

After my buddies and I walked out of the movie theater we noticed a large group of tweens waiting around for mommy and daddy to come in their BMWs & Lexus to pick them up. Their tween spastics were so deafening that we started to bleed from our ears.

Tween Spastics by Baltimore Beatdown October 24, 2007

tween wave 

The dominant musical genre between the years 2009 and 2012. It combines electronic beats with vocals that are so simple anyone could sing them. To most, this genre sounds like shit. Popular tween wave artists include Rebecca Black, Justin Bieber and, debatably, brokeNCYDE.

Hey, Josephine! Have you heard the new "tween wave" song?
Yeah, it sounds like shit.

tween wave by Jyrune June 20, 2011

tween case

Tween case is an obnoxious mix of Pascal case and Camel case invented by tweenage girls and adopted by WoW players throughout the world. Proper Tween case involves capitalizing alternating letters, without regard for punctuation or proper grammatical rules. It may also involve the use of trendy tween acronyms and annoying amounts of exclamation points.

Tween: OmG i CaNt BeLiEvE nObOdY eLsE wRiTeS lIkE tHiS!!!!!!!!!!!!!!1!!!
Mom: You really need to quit using that annoying tween case, it takes me twice as long to read your texts.

tween case by phantomztrain January 3, 2016

Tween Safari 

While driving in your car, hunting down attractive young teenagers. It is acceptable to yell "TWEEN" as you drive by, as loud as possible, if said tween is indeed hot. Or unusually goobery looking.

"Dude, wanna play Tween Safari?"

"I saw so many hot tweens while playing Tween Safari today."

Tween Safari by Hot4Tweens December 25, 2009

tween tee 

A T-shirt with an overused, cliched saying on it. For girls, it has some stupid flirty saying, while for boys, it usually says "I didn't do it!" Often worn by preteens.

What's that girl's shirt say? "I can only please one person a day"? Yep, it's a tween tee.

tween tee by spel itt rite August 30, 2006