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1.
Boat comes from the cockney 'boat race' i.e. 'face, and smashboat is therefore someone whose face is a mess, due to the ingestion of far too much alcohol or 'other'. The smashboat is a professional caner, and being a good smashboat takes hard work and usually a lot of money.
Alright, smashboat?
by JenniK August 04, 2003