Kind of sounds like a new designer dog hybrid, but "droodle" is a mix of "doodle" and "riddle," a simple line drawing with a complicated answer as to what it is. A famous one adorns the cover of Frank Zappa's album "Ship Arriving Too Late to Save a Drowning Witch," which is exactly what the droodle depicts. They're silly and almost impossible to guess, but it's fun to try. I'm really partial to the one on the left. See if you can guess what it is before you click the answer.
Droodle Archive
One, whose answer was "a spider doing pushups" with 7 lines going around a circle with one longer line going further down, was a good match. Try to picture it!
"Cat butt".
See how that works?