A derogatory insult towards a non-white person who is excessively obedient or servile to white people. The meaning is similar to the term Uncle Tom. It is derivative of the term Munch, but instead of referring to oral acts on women, it is with white men instead.
Jose no longer helps with the Latin community anymore. He would rather be a Cracker Munch and help that white guy incriminate us and deny our citizenship into the country.
A white communist who think's because he's far left he can't be racist or homophobic, thus alienating social minorities within communist organizations.
When Huey P. Newton attended a conference of the Progressive Labour Party, all he saw were a bunch of dogmatic cracker communists.
1) The guy selling Cracker Jack at Fenway who runs down the aisle then screams at the bottom "WHO WANTS CRACKER JACKS??"
2) The guy at Fenway who stands up during an at-bat to wave down the Craker Jack vendor so his kid/girlfriend/gay lover can fish through the box for a prize.