A very boring chart used in making pointless decisions, especially if you are a highly overpaid person to talk bullshit. It is more commonly used by youngters as a swear word or insult as the word "gantt", when shouted, sounds remarkably like the word "cunt"
Jethro: Do you like that new guy
Mitch: No I think he is such a gantt chart
by ISStudent May 11, 2011
Derivative of the Gantt Chart used in engineering project management: a graphical representation of your sexual exploits over time - often grouped by person and color coded corresponding to act.
Anne's doing really well with her New Year's Resolution to stay away from boys - she hasn't had to update her Gantt Chart in months!!
by FromPink2Purple May 13, 2010

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