One who performs strategictransport planning with a box of coloured crayons/pens, using them to draw lines on a map, without thinking through the implications.
"He thought of a way of linking two train lines together without any thought of how it could be achieved. He is such a Crayonista"
a fast young person who goes through problems with ex the relationship and only have a little hope in it and the couple show it off by play fighting and smiling when interacting with each other