The affectionate nickname given to the big yellow school buses servicing rural schools in South Australia, namely the 1250 route driven day in, day out by school teacher Mr. Blenkiron.
Seating positions on the Big Yellow Bitch correlates to one's level of coolness; senior students sit towards the back in order to yell obscenities or throw unwanted fruity projectiles out the window at passing Cornerstone College
students. Middle and junior students sit in descending age order towards the driver. The further one sits towards the driver, the nerdier the person.
Occupants of seats further of the emergency exit row are either year 8/9 students or extremely uncool. Eg. Paper Boy.
A source of great annoyance on the Big Yellow Bitch is having to share a seat with someone else, even if they are a friend. The small distance in between rows necessitates sitting side-on so that legs are not squashed. That, and the fact that the Big Yellow Bitch is guaranteed to break down at least once a year.