The graknil (miss Wormwood) was a pig-like alien encountered by Spaceman Spiff on planet zorg.
The graknil has the head of a pig with a forked tounge and no ears. It's body is green with yellow spots. It's body is a simple circle with tentacles.
Spiff was cornered between a rock (his desk) and a hungry graknil (Miss Wormwood). He drew his atomic napalm neutralizer. It simply bruised the graknil and Spiff made a run for it, and ducked into a cave (teacher's lounge). He found himself surrounded by monsters (teachers), but escaped