'Future Booty Investment': This is the preservation of good terms with "ex" girlfriends and boyfriends, leaving the possibility of enjoying sexual relations sometime in the future. The term was created in 2006 by Colin A.N. aka Manimal.
James broke up with Carol three years ago, but they remained friendly. Later, Carol got married and had a child but her marriage ended shortly after his birth. Since Carol's divorce, she and James have been hanging out from time to time enjoying the FBI of their past relationship.
by ManimalOfNature September 29, 2008
by aaaiiiiii August 22, 2010
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Stands for "Flaming Butthole Issues" Usually occurring a few hours after eating spicy food, such as hot cheetos or takis.
"Hey, I'm not gonna make it to your niece's wake. I got FBI from those spicy chicken tacos we had last night."
by JSleepy27 December 04, 2017
by thotneeshia September 25, 2018
by ResearchWolf August 30, 2016