These definitions are a bit more accurate than those I linked above. When you look at the definition of comparable terms in foreign languages, I think you get get a better idea of what these are.
There was a tragic accident in PA back in the 1880's where a squib factory blew up. This was before child labor laws were in force, and it seems that many young girls who worked in the factory died in or as a result of the explosion. You can find the NY Times article online if you like.
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