blackleg:
(plural: ‘blacklegs‘; pronunciation: ‘black…leg’)
a blackleg at cards (hiding a card in her sweater sleeve)
a person who continues to work when other workers are on strike;
in British usage: a worker who opposes (does not accept) trade unions (workers’ unions);
a strikebreaker; a scab;
a person who cheats at card games,
When the regular workers are on strike, several factories engage blacklegs from other places.
A blackleg is also called a ‘scab’ which, apart form other meanings, is also used to refer to the hardened part on a wound or cut while it is healing.
We seldom invite Mathews to join us in our card game sessions as we all know what a blackleg he is!

