An over-sized American car that has a wave-like ride. Typically these cars are four-door'ed and have over-sized engines.
That ho M drives a Pontias Parisienne, that sum bitch is a bigger boat than a 59 Caddy.
by F7 September 25, 2004
Top Definition
Stands For: Biggest Baller Of All Time

Friend 1: "That dude is the Big BOAT he got with a hot chick last night."

Friend 2: "Na man I am the Big BOAT I got with 2 babes at the same time last night!"

Friend 1: "True. True."
by BBOAT March 23, 2011
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