adultery

A married person sleeping with somebody other then their SO, whether or not the other partner knows about it.

Sleeping with a married couple is adultery on the part of all three people.

by Loki April 10, 2002

Adult Baby

When one dresses and acts like a baby, Having to be cared for in every way by a mommy, daddy, or both.

Adult Baby Joe has a mommy that feeds him and changes his soiled nappies

by Leshrec November 9, 2008

Adultrous

When something is sensually scandalous.

Jane and Fred are being adultrous not answering thier phones.

by Captain Freshness November 15, 2009

adult sippy cup

Beverage that holds liquid courage. Not meant for children. And definitely not meant for spilling.

Hey Charlie I hope you brought your adult sippy cup because this twerk fest is about to go Miley on your liver.

by BaneCat April 16, 2014

adult

A person who thinks that they are always right and you are always wrong because they are 18 years out of their mother's buttocks and you are not.

Adult: It doesn't matter if we cheat, steal, lie, kill other people, abuse drugs or start illegal wars for profit or how many times we were wrong beforehand, you must always obey us without question.
Child: Screw you!
Adult: Faints, before screaming "Go to your room"!

by Hot.rodz September 2, 2019

Adult Swim

An anime/cartoon block that comes on cartoon network after 10pm (Central Time). Was created after the early sucess of Space Ghost: Coast to Coast back in the late 90's and after the sucess of the anime block that was shown on late night saturdays. Adult swim is basically a combination of anime, cancelled fox cartoons and adult swim originals.

Shows that were/are on adult swim, as of august 3rd 2004, include:

Anime: Reign, Lupin the 3rd, Kikader, Inuyasha, Case Closed, Yu Yu Hakasho, Trigun, Cowboy Bebop, Big O, FLCL, Wolf's Rain, Blue Gender, Witch Hunter Robin, Tenchi Muyo.

Cartoons: Aqua teen hunger force, Harvey Birdman, Sealab 2021, Baby Blues, The Brak show, The Oblongs, Space Ghost: Coast to Coast, Mission Hill, Home Movies, Family Guy, Futurama.

Adult swim is soon getting:

Venture Brothers, Ghost in the Shell: Stand Alone complex, Full Metal Alchemeist.

by mr.t August 3, 2004

Trans-Adult

When an adult either acts like a child or identifies as one

Example1:
Guy at bar: Hey checkout the goofball drinking a beer while wearing a bib

Girlfriend: Shh someone will hear you he's 53 but identifies as a 14 month old when he eats.

Example 2:
Husband to wife: Why is there a 40 year old playing second base in this Tee ball league?

Wife: Quiet someone will hear you he's Trans-Adult and identifies as a child

Man behind them: I'm his father, chronologically he's 38 but identifies 6 year old for this league. Oh and he is destroying all Tee ball records.

Husband: That's BS

by Catman - 63 July 12, 2017