doodled

/D UW1 D AH0 L D/
verb
  1. 1

    To draw or scribble aimlessly.

    โ€œThe bored student doodled a submarine in his notebook.โ€

  2. 2

    To drone like a bagpipe.

Source: https://en.wiktionary.org/wiki/doodle, https://en.wiktionary.org/wiki/doodled