He asked if she had any 'skeletons in her closet' that might affect her political campaign.
She's a 'closet' racist. [=she does not want people to know that she is a racist]
The manager 'was closeted' with one of her employees for several hours.
(..) -What do we have here? -Wait! Turn that thing back on! Come in, Mother Bird! Come in, Mother Bird! Mom has pulled a surprise present from the closet. Andy's opening it. He's really excited about this one. -Mom, what is it? -It's a huge package. Oh, get outta the... One of the kids (..)1995 Toy Story