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1.
ridiculous or inane forum thread, post or remark.
This thread is so booty!
Your post is so booty!
I think your remark was so booty!
by Mike Parkhill December 01, 2006
 
2.
an extremely cool person, place, or thing; used to describe something beyond cool; outrageously fantastic;

(syn) excellent, dandy, divine, glorious, groovy, hunky-dory, keen, marvelous, neat, nifty, sensational, swell
David told me The Transporter is so booty.
by sobooty June 20, 2004