geniac 

A combination of two different words, GENius and manIAC.

A brilliant individual who is completely and utterly out-of-control, possibly even insane.

If you encounter a geniac, do not attempt to emulate them, for it can only result in disaster.

If two geniacs come into contact, the results can vary from one extreme, spectacular mutual destruction, to the other extreme, extraordinary creative power.

Evariste Galois was definitely a geniac.

By age 20, he had failed out of school, been in prison, invented a new branch of algebra, and solved an unsolved mathematical problem.

At age 21, he was dead from a gunshot wound in a duel.

geniac by Master Control May 6, 2005

Genicious 

adj. When something is both genius and delicious at the same time.

Joey: My, these bananas are delicious AND genius at the same time!
Steven: Duh! That's because they're genicious!

Genicious by StevenTheYugo June 29, 2009

geriachick 

An attractive female who is too old - generally above 50 - to be considered a cougar.

Guy1: Check out the smokin geriachick yonder.
Guy2: Dude,that's my grandma!
Guy2: Hi grandma!
Guy1: Your grandma is hot.

geriachick by o0oo January 12, 2008

Geniece 

A most loyal and honest person. She is the one friend that everyone needs in her life. She is boy crazy and can have a temper, but if you're on her good side, you're good to go! She is always there for you and will always have your back. She is willing to do anything and everything. She is beautiful, thoughtful, and loving.

Geniece is so amazing!!!

Geniece by wofe July 30, 2012

Geniarse 

Someone who is generally accepted to be an arse but occasionally shows moments of pure genius.

Scud was the first geniarse.

Geniarse by schmeee December 6, 2006

GENICON 

a much-fantasized-about sexual partner envisioned during sexual activity that assists one in facilitating orgasmic pleasure when their regular partner isn't cutting the mustard.

She became increasingly bored and turned off with her bald, flabby-bellied, hairy-assed husband, that during their bone dances together, she heavily relied upon her genicons, and power-operated toys, for fulfillment.

GENICON by weave September 17, 2003

Geriactasm 

an orgasm given by a toothless elderly person.

Beatrice gives the best geriactasms in town.

Geriactasm by Shane McGehee November 26, 2009