A crigga is just one crazy nigga.

Crigger crig-er
Usage note:
The term crigger (or more commonly pronounced ‘crigga’) is a derogatory term when used by an able-bodied individual, but is sometimes used among the disabled in a neutral or familiar way.

--noun, plural –s for 2 or more.
1. Slang:
a) An individual who lacks adequate power, strength, or physical or mental ability; incapacity, disabled.
b) A member of the disabled population.

2. Slang. a person with a disability regarded as contemptible, inferior, ignorant, etc.

3. A victim of prejudice similar to that suffered by blacks; a person who is economically, politically, or socially disenfranchised.

Origin:
2006-08; cripple + nigger by Sir Griffin Moonlove the 4th

a cracker who wants to be a nigga or redkneck nigga

The universal work for whites and Blacks to call each other with out offending each other. (Noun)

It is a conjugation of Nigga and Cracka

(This term was created in Chico California, at Chico high school by a white man and a black man.)

someone who is black with a lot of white tendencies
someone who is white with a lot of black tendencies
not a cracka but not a nigga just ignant

A cracker and a nigga combined. Normally this word is tryin to explain a certain type of half bread(black and white), except it is using the "raciest" terms for these words:
black=nigga
white=cracker

A black person who acts white or sounds white, or a white person who acts black/sounds black.