When you get hit so hard in a sport or in a fight, that when you hit the ground you get paralyzed, causing your arms to get stuck in a driving motion. Almost like your hands are on a wheel, driving a bus.
Tua Tagovalia got hit so hard on Thursday night football, that his bitchass started driving the bus. He was whipping that hoe.
Vomiting into a toilet -often violently and for an extended time- whilst holding its rim like a steering wheel.
Australian Prime Minister, Kevin Rudd, when asked at a press conference about his recent bout of food poisoning: "Yes, I was driving the porcelain bus half the night."
Spewing into the toilet. You are on your knees and your hands are on the bowl(steering wheel). People who drive the bus are usually drunk and drive it very cautiously, they hold onto the steering wheels firmlyx
Did you hear mum driving the porcelain bus last night? It kept me awake for hours! Dadsaid she was drinking spumante- i guess she got the desired result.