Top definition
To indulge in copious amounts of drinking for at least a 2 day period, ruthless banter that is completely inappropriate and spoken extremely loud around strangers.
We're totally gonna smash it in tonight dude, it's gonna get messy.
Let's smash it in bitches.
Dude we totally smashed it in last night, it was awesome!
by Pablo Smashitini October 20, 2009
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2
To 'Smash it in' is to do something such as cooking or cleaning extremely well.
"Smash it in, don't take no shit off no dishes"
by Young Blood Cardiff Central April 06, 2013
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3
Lads talk when out drinking and talking about having sex with girls they see out and about in the street, bars and night clubs.

Also refers to the climax of scoring a goal in football (Soccer).
To 'smash it in'.
I'm gonna smash it in.

He's going to smash it in the back of the net.
by tommy tanker March 20, 2012
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