Usar "slang expression" en una oración

1. the last up-to-date slang expressions, or idioms, or the latest issues, those that “everyone

2. " There was besides, in Montparnasse's sentence, a literary beauty which was lost upon Gavroche, that is mon dogue, ma dague et ma digue, a slang expression of the Temple, which signifies my dog, my knife, and my wife, greatly in vogue among clowns and the red-tails in the great century when Moliere wrote and Callot drew