Heidi the Hydrant is a broken fire hydrant that only appears the episode "Lost in Bikini Bottom." It was named by SpongeBob.
It is a red broken fire hydrant that SpongeBob personifies to be female.
Role in episode
Heidi is seen when SpongeBob gets lost. It is used as a landmark by SpongeBob when he tries to find his way to the Krusty Krab