batty bus 

The "Batty Bus" is the nickname for the double-decker busses( mainly yellow and/or orange, and commonly the service 104. It is named so because it mainly carries students from devonport High for boys, an all boys school which many people believe mean they are gay. So that's why we call 'em battys

Person one: Did you see that guy on the batty bus stick his middle finger up at us?
Person two: Yeah, we're gonna egg 'em tomorrow.

batty bus by GreendayMCRGoodcharlotterock June 27, 2006

bustin low batty

To wear one's trousers low, and expose one's boxer shorts

That boy is bustin low batty

bustin low batty by lOrD_fEaThErInG-wAlThAmStOnE December 11, 2009

bussing low batty 

Wearing trousers far below the hips.

Oh miss man, allow it, you shouldn't be looking. I am bussing low batty, so what?

bussing low batty by seasonticket July 24, 2006