Shameful secrets (pluralia tantum; shortened from skeletons in the cupboard or skeletons in the closet).(noun)
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Use "skeletons" in a sentence
"Let him run ... it is always fun to dig out the skeletons from the closets."
"Once they locate their clients (using only an illustration of the residence), Rosencrantz and Guildenstern get to work extracting figurative skeletons from the literal closet."
"The G-2 Ace ends up deep in skeletons in the catacombs, along with his offsider Andre, after being framed for a 'murder in the dark situation.'"