Top Definition
A half bar is half of a 9 bar
(yes we are talking about drugs here)

a 9 bar is 9oz of either weed or solid, so a half bar is 4.5oz
How much for a half bar mate?
The person is looking for 4 and a half oz of gear
by TFnk June 14, 2007
1 more definition
10 Words related to half bar
When your penis is at half length and is an inconveience.
Boy 1: Man wtf is in ur pants?

boy 2: dude i got a half bar shutup
by echo_33 January 10, 2007

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