Top Definition
An acronym that stands for "Big Dick Incoming". Used commonly in online games to express impending danger, domination, etc.
Nice guys! I just got enough kills for a nuke! BDI!!!
by June Saten May 04, 2011
1 Word related to BDI
an acronym for "big dumb idiot"
"did you see that guy jump off the bridge?"
"ya what a bdi"
by VD2098 March 22, 2010
Beauty Density Index
The BDI in parts of L.A. is higher than most places throughout the world.
by YouKnewWhatThisWas January 24, 2015

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