have (a) skeleton(s) in (one's)/the closet
To have (an) embarrassing, unpleasant, damaging, or incriminating secret(s) from one's past. Primarily heard in US. Even the most seemingly perfect people have some pretty shocking skeletons in their closets. She has a skeleton in her closet that could ruin her chance at the presidency if the press were to find out about it. My agoraphobia has always been something of a skeleton in the closet for me.
have (a) skeleton(s) in (one's)/the cupboard
To have (an) embarrassing, unpleasant, damaging, or incriminating secret(s) from one's past. Primarily heard in UK. Even the most seemingly perfect people have some pretty shocking skeletons in their cupboards. She has a skeleton in her cupboard that could ruin her chance at being elected if the press were to find out about it. My agoraphobia has always been something of a skeleton in the cupboard for me.
skeleton crew
The bare minimum amount of employees necessary to keep an office, business, service, etc., running at a basic level. We can't have a restaurant that is completely closed during the slow season, so we keep a skeleton crew on board to serve the few customers who decide to come in. The rigs will have a skeleton crew keeping them running until the company finishes handing over its business to the new owners.
skeleton in (the/one's) closet
An embarrassing or shameful secret. Primarily heard in US. If you've got a skeleton in the closet, it will probably be exposed during this campaign. He didn't believe me when I said that I didn't have any skeletons in my closet.
skeleton in (the/one's) cupboard
An embarrassing or shameful secret. Primarily heard in UK, Australia. If you've got a skeleton in the cupboard, it will probably be exposed during this campaign. He didn't believe me when I said that I didn't have any skeletons in my cupboard.
skeleton at the feast
One whose pessimistic outlook or behavior dampens the mood at a happy event. Don't invite Chris to your engagement party—he's always so gloomy and will just be a skeleton at the feast.