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"
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