pp. Refusing to allow one's boss or other managers to leave a place of business as a protest against perceived unfair labor practices.
2014
Workers at a troubled Goodyear tyre factory in northern France were holding two managers hostage for a second day on Tuesday in a dispute over planned job cuts…."Bossnapping" — as the act of workers taking their bosses hostage has been dubbed — is not uncommon in France.
2013
Bossnapping is back in France. Sacked workers at a greetings card company refused to let two of their bosses out of the factory after being told they would receive no severance pay because "there is no money".
2009 (earliest)
In the latest outbreak of "bossnapping", workers at a pharmaceutical factory were Wednesday holding their boss in his office for a second day to force him to improve their redundancy packages.
Merci to Sophie Bramel for passing along this term.