moodle

As a noun poodle

is any of various breeds of dog originating in Europe as hunting dogs, and having heavy, curly fur in a solid color; their shoulder height indicates their classification as standard, miniature, or toy.

As a verb moodle is

to dawdle aimlessly, to idle time away.

As nouns the difference between moodle and doodle

is that moodle is modular object-oriented dynamic learning environment while doodle is (obsolete) a fool, a simpleton, a mindless person.

As a verb doodle is

to draw or scribble (something) aimlessly.