Around 1940 and after, "a boner" was a screw up or mistake. So, to "pull a boner" was to make a mistake. Don't say "I pulled a boner" to your Teacher or Boss or police. they'll punnish you for that. If you're brave, you could try it with anyone else.
A Latino or Latina person who is part African-American or part African, or wants to be part African or part African-American. In the 1971 film, Sweet Sweetback's Baad Aaasss Song, a Latina woman calls herself a "Nacho Nizzle".
from a film, "Stop harassing me with your questions, cop! Get away from me, Man! Or I'll throw a nacho nizzle fit on you.
just a guess of mine-cracker=stereotype name for a white person. The name might have come from the tradition of andy griffith tv show-like white man run- general store, where old geezer white men would play checkers on top of a wooden cracker barrel.
Maybe charlie knows how to fix your motorcycle.
Shoot! That old cracker can't fix anything made after Noah's ark!
A stereotypical word meaning an african-american. Possibly a mispronunciation of nergro. Some people dislike the word negra as much as the n-word. I suggest that you don't call a stranger a negra. Calling someone this could be as insulting as calling an african-american a "boy".
In 1850, my relatives used to own a lot of negra slaves.