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1.
The term used as a show of hometown, or where you came from, or where you were born and raised. Used by those in the swamps and along the coasts of Mississippi, Louisiana and Alabama.
You see dem boyz from da Bayou. Day ack all country and shit, but day know day jes from da Bayou.
by MuddKatt June 19, 2007
 
2.
A place where the swamp donkeys habitate. Be careful, they try to lure you in with free cigs, alcohol, and food... especially alcohol. Although you think its "free" you will you pay your price when the rufees and sedatives settle in. Never enter a bayou alone... bring friends with you. once you enter, much like Alcatraz, it is next impossible to leave the bayou without a loss of memory of the last couple hours.
Bro 1: Dude... where were you?

Bro 2: Woke up naked in the bayou again.

Bro 1: Those damn swamp donkeys got us again!!!
by Patient 004 September 27, 2010
 
3.
a word used to describe any body of water in Louisiana; only used by people who believe that "Cajun" is an actual ethnicity rather than a type of food.
Anne: Look at that bayou!
Jon: Anne, that's a river. There is no such thing as a bayou.
Anne: Oops. Sorry. I forgot.
by selbeepnoj October 04, 2009