on the bus 

Bar-hopping without a plan, in search of something (or someone) better. Most often used derogatively, as this kind of night rarely turns out well.

We've already been to two bars. If you're going to be on the bus all night then I'm going home.

on the bus by Kate December 9, 2003

Threw me under the bus 

When someone advertently or inadvertently reveals something that embarrases you or gets you in trouble.

Laura, I thought that since you were my doctor, that was confidential. You totally just threw me under the bus!

Threw me under the bus by No longer alive, under the bus November 26, 2007

Riding the bus 

The process of a person jumping on a person's penis/cock

"Do you Riding the bus?" says Richard. "Yes I do" says slutty Owais.

Riding the bus by Osama bin Hitler Putin Shootin June 6, 2015

School Bus Driver 

Someone you should always thank no matter what.

Jeff: Thanks school bus driver!

Bus Driver: Thank you for thanking me, Jeff.

School Bus Driver by Alanspiderkipz July 7, 2018

Cat Driving a Bus 

A frantic or silly act

That guy needs to relax, he looks like a cat driving a bus

Cat Driving a Bus by River Bandit September 23, 2010

throw under the bus 

To actually throw somebody under a moving bus.

Example 1
I was feeling really upset with my colleague, so I threw her under a bus. This was my fulfilment of a lifetime urge to actually practice the phenomenon to "throw under the bus".

Example 2
The driver confronted me and asked "what the fuck did you throw her under my bus for?"

throw under the bus by The Gonzo Lecture March 10, 2010

Old`bus left 

An old woman bus driver who leaves kids that are running for the bus stop.

Richie;dude eveelen pace got Old`bus left by ms.licon to day

Old`bus left by want2befree13 December 28, 2005