sketch

used jokingly, to call a friend that says that they will show for something (ie: a party, the fair, the movies, etc.) and then "has something to do" at the last moment...or just doesn't show up.

person 1: why didnt john go to the lake with us the other day?
person 2: he "had to go shopping with the family" at the last minute.
person 1: dude what a sketch!!!