A black person’s automobile, as used in southern parts of America usually by white people. Especially refers to the idea that one should not be able to tell the race of someone by looking at their car.
An urban public transit service used mostly (in some cases exclusively) by Black people. A typical jigaboo choo-choo never runs on time and suffers from frequent breakdowns, vandalism, and rampant crime. White people only ride the jigaboo choo-choo as a last resort.
We couldn’t find an Uber, so we had to ride the Jigaboo Choo-Choo back to our hotel after the Orioles game.