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Noun: To be substituted for "bridesmaid" in the expression "Always a bridesmaid and never a bride." Use is limited to a reference to sports, sport hobby, or dating.
That Tony and Rico guys, they're always Bonaccis and never a bride in our fantasy football league.
by Truant January 13, 2004
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(v) The act of utterly failing something.
Duuude.

What's wrong?

I totally Bonacci'd that last date. I'm certainly not getting a second chance.
by Daffaka #2 October 21, 2009
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Comes from the latin word: Corvettus Championicus StarWarsChumpus
A Bonacci triangle has two equal length sides.
by Philip C. Samaro January 14, 2004
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Multiple Meanings :

- To talk extremely loud in an office environment when on the phone to business clients to make it sound like you're overly important.

- To give everyone you know a motivational talk despite the fact no one finds it motivating

- To share your "wisdom" and "knowledge" despite no one wanting to hear it

- Excessive Beard Growth

- To walk around the office when on the phone so that every department can hear super important call

- A playlist of motivating 80's montage music
Person A : "has anyone got any good music we can put on?"
Person B : Stick on the Bonacci List !!!
by davidbrent00001 May 01, 2016
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