Betsy

Betsy is a member of the trenchbilly gang in the episode "Trenchbillies."

Description
She has a pale blue skin and wears a pink dress with magenta flowers on it. She has curly, orange hair with a pink bow in it.

Role in episode
Ma Angler calls Betsy for a "hootin' and hollerin' contest" where she begins to yodel as a challenge for and  to face.

Since they were thirsty, SpongeBob and Patrick drink a can of soda, causing a loud belch from their mouth for a long period of time at Betsy. The trenchbillies then take this as a win for SpongeBob and Patrick.

Trivia

 * She is the second character in the series to be named Betsy after Betsy Krabs.