look up any word, like slope:
 
1.
Full Blooded Native Americans - the word originates in san Clemente CA, but has spread to all of Orange County. I means to get as fucked up as a native american so your alcohol level is full blooded. Then you proceed to fuck non FBNA's up and get mad pussy.
-No way! Your gonna get FUCKED UP!!!

- Thats so FBNA
by sircumsalot47474747 March 02, 2011
 
2.
Fat Bitches Not Allowed
Guy 1: "Hey, lets have a party tonight"
Guy 2: "Ok, I'll call all the people I know, it'll be kickin'"
Guy1: "Remember, FBNA"
by ddaskjfads;lkjadslkjf May 19, 2005