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Secure Housing Unit - a prison term for a lockdown high security housing unit. Pelican Bay in Northern California has a notorious SHU.
After shanking his cellie, Mike spent five years in the SHU.
shu by mijito64 June 24, 2005
Related Words
1. a fabulous shit also known as senpai
2. a mature 12 year old bitch
1. Yo is that shu wen? She's so fabulous.

2. Shu wen go to your room you lil fucker.
shu wen by The Shovel Exists July 7, 2016
Shu (Su) was the god of dry air, wind and the atmosphere. He was also related to the sun, possibly as an aspect of sunlight. He was the son of the creator god, father of the twin sky and the earth deities and the one who held the sky off of the earth. He was one of the gods who protected Ra on his journey through the underworld, using magic spells to ward off Ra's enemy, the snake-demon Apep. As with other protector gods, he had a darker side - he was also a god of punishment in the land of the dead, leading executioners and torturers to kill off the corrupt souls. His name might be derived from the word for dryness - shu, the root of words such as 'dry', 'parched', 'withered', 'sunlight' and 'empty'. His name could also mean 'He who Rises Up'.
Shu was generally depicted as a man wearing an ostrich feather headdress, holding a sceptre and the ankh sign of life. Sometimes he is shown wearing the sun disk on his head, linking him to the sun. Occasionally, when shown with his sister-wife Tefnut, he is shown in lion form and the two were known as the "twin lion gods". At other times, he was shown with the hind part of a lion as his headdress, linking him to his leonine form. Mostly, he was shown with his arms raised, holding up the goddess Nut as the sky, standing on the body of Geb.
Shu by ♫ Highway to Hell ♫ August 4, 2010

Shu'ing it 

A physical state of absence... when the mind can not comprehend even the simplest of things. When asked a question the person turns their head to the side and stares at you, eyebrows raised and then repeats what you said.
I am going to get some hot rims for my car.

Response: *blank stare* what are rims?

Wow, I cant believe you said that, totally Shu'ing it!

or

The vin # for your car is where the dashboard and windshield meet.

Response: *turns head sideways* "What is a windshield?"

He did not just say that! Totally Shu'ing it!
Shu'ing it by All is fair! May 13, 2011
A minuscule bird located in the southern hills of Pakistan. Despite it's small nature, it's penis is the ninth largest in terms of body to penis ratio.
Person A. "My God, if only my penis were sizably proportionate to that of a miniscule Pakistani mountain bird.

Person B. lolshu?
shu by Shuluver January 10, 2009
faster/better way of saying "shut up"
Girl pointing to other girls boyfriend: He looks like a fuckin chicken when he runs.

Girl with the boyfriend: Shu up!
shu up by beky June 11, 2006