Top definition
Express vehement distain, disgust or exasperation with the options given to you.

Commonly used by older and/or rural New Zealand and Australian men. 'blow' means 'to blow up' (as in explode) or 'blow away' and does not carry any sexual connotation.
John: 'The car's out of petrol. Looks like we're going to be stuck here'

Jeff: 'Blow that for a joke - I'm walking'
by porjo January 27, 2013
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