When you use the minus sign, it makes the following word a "negative keyword". Here is an article about it that states:
You need to add a minus sign before each keyword to add them as negative keywords in Google AdWords. For example, if you are selling only cameras and not camera bags, adding "-bags" as a negative keyword will not trigger your ad when someone searches for "camera bags."
The negative keyword is applied in the adwords planner. It means "How many people searched for 'lingerie' without including the keyword 'ebay' as well". It doesn't tell you have many people used the minus operator in Google search to exclude ebay from their search results. I'm not aware of a way that you can get that information from Google.
In addition to specifying negative keywords at the keyword level, you can also specify them at the ad group, or campaign level.
The keyword volume for people searching for "lingerie ebay" is very low. Because of this the keyword volume for "lingerie" is approximately the same as the keyword volume for "lingerie -ebay". Here is a screenshot from the keyword planner:
Google is rounding these figures. They mean that there are approximately one million monthly searches for "lingerie". It could be as low as 950,000 or maybe even as high as 1,499,000. When you take 210 away from 1 million, you get a number so close to 1 million that it gets rounded back to 1 million.