It is a large, dark green and light green colored snake with red eyes and big fang-like teeth. It has been shown to eat what would be indigestible objects to humans.
It appears to be very unfriendly.
It appears in the episode, The Sewers of Bikini Bottom where it ate SpongeBob and Squidward. However, they tickled the inside of his mouth which made him barf them out. He later appeared in the Krusty Krab Stadium where Charleton Hawkfish used his sharp nose to pop him like a balloon which sent him flying back to the sewers.