bang on 

Exactly right. Origin: British english. Also "spot on."

Jane's prediction of fourth-quarter earnings was bang on.

bang on by Spirit Bear October 28, 2004

bang on 

To talk too much, about nothing in particular

I'm not listeneing, so don't bang on about it, OK?

bang on by mangovega January 5, 2011

bang on 

Dublin slang for someone who is sound

Yeah I know Spud he's fuckin bang on.

bang on by womoma April 15, 2005

bang on 

To abruptly hang up the phone on somebody

"She started talkin reckless so I had to bang on her"

bang on by bumble bee wonder April 6, 2009

Bang on 

Scouse slang

Total opposite to what it normally means.

It means wrong,al ass,out of order.

OMG what John did was bang on!!!!!!

(John did something bad)

Bang on by **Becca*Hawks** May 8, 2005

Bang on 

New York slang meaning to beat someone up.

"When I see that nigga, im gonna bang on him."

Bang on by Brooklyn-Snook August 27, 2009

bang on 

bang on, used to describe when a man gets an erection and creates a visible bulge in his pants

that man has a bang on in his trowsers

bang on by scott the god that failed December 29, 2005