Half a bar 

To have half an erection.

*looking at cleavage*: "I've got half a bar right now"

Half a bar by TurboPhoenix October 21, 2011

half a bar 

50 pence. Or one half of one Great British Pound. A pound coin is gold in colour, hence the reference to a gold bar.

Blokeinnapub 1 "Oy! 'Ow much firra game o' pool iniss shittol 'en?"
Blokkeinnapub 2 "Arf a bar mate anna taker to er fuckincleaners annaw"

half a bar by flatley June 13, 2005

halfabar 

to express joy or understanding of any situation.

partygoer #1 "man i'm so smashed"
rest of the party "HALFABAR"!!!!!!

halfabar by CorioBrad March 8, 2007