Top definition
1)To be out on the town drinking to get drunk. Can be used in this sense even before one has started drinking.
2)To get drunk.
3)To be drunk.
1)"Bro, what are we gonna do tonight?"
"I'm keen to get on the hammer!"
2)"Let's get on the hammer cuz!"
3)"You punters on the piss?"
"Yea bro. We're on the hammer tonight!"
by Dave Remillard November 29, 2007
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