An urban dictionary cracka is the type of cracka that is to scared to voice his/her opinions about black/latino/whatever is not white races to their faces, but feels more comfortable posting them up on urbandictionary.com. The urban dictionary cracka frolicks online, but outside of its natural habitat (the real world) it is frequently beaten and socially shunned.
Urban dictionary crackas are most known for having hate or prejudice for an entire race because of one or two minor incidents between a person of that race.
Urban dictionary cracka: NIGGER NIGGER NIGGER
*Urban dictionary cracka gets his ass beat*
The type of white person that comes on this site and expresses their hate for other races and/or religions because of their conservative upbringing and insecurity caused by their small penises. Scary ass crackas are most commonly found in the U.S. though certain species thrive in the U.K. as well.
Scary Ass Cracka: I hate black people!
Black Person: Why?
Scary Ass Cracka: Because mah daddy duz!
Scary Ass Cracka:......Nigger
*Scary Ass Cracka gets stomped out*