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2.
Noun:

A person who consistently acts like a dumbass. A person who is a geeky nerd. A stupid person.
The reason our economy is such a wreck is because George Bush is a fucking geetus.
by Mr. North April 26, 2006
 
1.
a stupid, dorky person. Usually someone you know who repeatedly displays this behavior.
Man, Keith got in a fight with the police, and they beat his ass again. Man, what a geetus
by Mr. North May 03, 2006
 
3.
One own personal aura or style.
Can you believe that dude's geetus?... he's wearing mandals for crying out loud
 
4.
Crazy; someone deranged and possibly dangerous; Derived from the Hindi word for insane
Her stressful work caused her to go geetu.
by Anonymous November 22, 2004