Barnet
Origin
Rhyming slang, from Barnet Fair.
Full definition of barnet
Noun
barnet
(plural barnets)- (Cockney rhyming slang) hair (on one's head)
- 2013, Russell Brand, Russell Brand and the GQ awards:
'It's amazing how absurd it seems' (in The Guardian, 13 September 2013)http://www.theguardian.com/culture/2013/sep/13/russell-brand-gq-awards-hugo-bossBoris, it seems, is taking it in this spirit, joshing beneath his ever-redeeming barnet that Labour's opposition to military action in Syria is a fey stance that he, as GQ politician of the year, would never be guilty of.