Twafini 

A twafini is a penis. It could also be used when talking about activities during sex.

Hey gurl! I had sex with Devin last night and his twafini was huge! OMG!

Dude! I walked in on Michaela and Devin last night and they were totally doing the twafini!

Twafini by twafinilover July 13, 2011

Twafini 

A twafini is a penis. It could also be used when talking about activities during sex.

Hey gurl! I had sex with Devin last night and his twafini was huge! OMG!

Dude! I walked in on Michaela and Devin last night and they were totally doing the twafini!

Twafini by twafinilover July 13, 2011

Twainiac

Any of the students from the Mark Twain School for "Special Kids". Any Mark Twain kid that got arrested or in juvenille court system.

I heard he's a Twainiac, he stole a few cars before coming here.

Twainiac by GBurgNupe August 24, 2004

Twainiac

A current or former student of the Mark Twain School for problem kids in Rockville, Maryland. Any student of an alternative school.

You can see twainiacs being arrested on "COPS" or on "Jerry Springer"

Twainiac by K Joyce October 2, 2007

twainiac

A former student of the mark twain school, which featured grades 7 through 12 and offered kids who were coded as emotionally disturbed (nutty) a place to run amok with other such unbalanced and often dangerous fools. The school is located in rockville Maryland next to a large forest area. Staff members often restrained students physically then went home and masturbated to the memory of it. Mark Twain would be the last place you might want you're child to end up unless you were grooming them for a circus side show act.

That child just beat up that other child with a trash can, i think they might send him to Mark twain, what a twainiac he will be indeed!

twainiac by truth fan November 4, 2009

Shania Twaining 

After being cheated on by your spouse with your best friend, getting them back by hooking up with your best friend’s spouse.

This term comes from the factual scenario when Shania Twain’s husband cheated on her with her best friend. Shania Twain later divorced him, and married her best friend’s husband. This really happened, I shit you not.

Jim: “Wow, I can’t believe our best friends are idiots and decided to cheat on their spouses with each other.”

Rachel: “Yea, but that’s ok, the real winners are Mike and Sarah. They ended up Shania Twaining in the end.”

Shania Twaining by Legitjosh February 2, 2019

Twainie 

One who attends the school Mark Twain in new york city. Usually known to be artsy, emo, scene, gay, nerdy, or a prep. Very talented artistically, but full of himself/herself.

K: Ugh, that guy is such a twainie!
D: Hey, I go to Mark Twain! D=

Twainie by asphyxiated January 28, 2008