What's an absent-minded drawing called?

There's a specific word which is used for drawings (like smilies, cars, cartoons, etc) which we made to pass the time, say while talking with someone or in a lecture. I need to know the exact word for it.


It's called a doodle.

A rough drawing made absent-mindedly:
the text was interspersed with doodles

[ODO]


It's the activity known as doodling.


Another possibility is scribble. The main difference is that doodles are more likely representational while scribbles are generally abstract, though this is not necessarily true in either case.