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Billy's mom is a fish who first appears in the episode "Something Smells." She works as a cashier at the Bikini Bottom Mall.
She is a light green fish with dark orange hair. She wears a light pink dress, a dark purple skirt, and yellow earrings. She has also been purple, blue, and orange.
Role in series
She is burned by SpongeBob's rancid breath at Reef Cinema.
She is revealed to be a cashier at the Bikini Bottom Mall.
She is seen driving a boat with her son.
She conducts the piano for Squidward's symphony.
She appears as one of Pearl's friends at the slumber party.
She appears walking near the Krusty Krab with her baby in the beginning.
She is first seen as one of Pearl's friends at her slumber party. She is later seen at Fancy! with her husband.