Pi Chart 

A bar chart whose adjacent vertical bars have heights proportionately based on the digits of the decimal number π—from a distance, the statistical diagram looks like a city skyline.

On a graph paper, what is the most number of bars you can draw for a pi chart?

Pi Chart by MathPlus November 4, 2021

#30plus Sex Chart

The diagram showing members of efnet's #30plus chatroom, and their connection to other members with whom they've had sexual relations.

Did you see how many spokes Nihilist has on the #30plus sex chart? Yeah, just looking at it gave me the clap!

#30plus Sex Chart by Louise Jefferson July 24, 2006

Boob chart 

boobs put into a well thought out chart defining the different boobs.

( .Y. ) normal boobs
(.Y.) small boobs
( . Y . ) big boobs
( .y. ) retarded boobs
( . | . ) flat boobs

this is the boob chart

Boob chart by fool in the face May 3, 2006

gantt chart 

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

gantt chart by ISStudent June 5, 2011

Boob chart 

A chart showing pictures or illustrations of a wide variety of breasts, varrying in size and shape, or even nipple size. Can be used to sort females into groups, as a party icebreaker (provided persons at party can take a good joke), as a referance for drawing or painting, or to compare the wide variety of breasts that there are. Usually created and used for comedic purposes.

Guy1: Look at all the babes at this party!
Guy2: Yeah, man! Gotta pull up the boob chart on Google images to sort these girls out!
Guy3: Nah, we should make one of our own using pics of 'em!
Girl: You guys are such pervs!

Boob chart by TheManWithTheGoldenSun October 28, 2009

Toe Chart

Tedious and Overly Evil chart. Used in many stupid Visual Basic classes to "draw" the program before you begin writing the program. Very useless. Used only by complete idiots.

dont forget to do your Toe Chart

Toe Chart by Tyler November 19, 2004

Gantt Chart 

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!!

Gantt Chart by FromPink2Purple May 13, 2010