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1.
An act or person that is extremely creepy and repulsive. Typically referring to sexual perversion of the most uncomfortable and unwanted nature. Traumatic experience.
I feel so violated right now, he totally tried to hajas me.
by chrishansened November 15, 2010
 
2.
To say something is funny or made you laugh. It is the urban or new age gangsta way to say haha.
HAJA, Yo that shiznit was dope, it cracked me the funk up!
by B-Diddy from the NO October 19, 2007