closet lobster
An individual who avoids public appearances or hanging out with friends because of an embarrassing sunburn or sunburn lines.
"Hey, have any of you seen Brittany since two days ago at the beach?"
"No, I think she is being a real closet lobster because I know she didn't use sunscreen."
"No, I think she is being a real closet lobster because I know she didn't use sunscreen."