mystery bag

1词源 1

名词 Noun

A bag whose contents are unknown.
A bagged package, randomly picked, which contains surprises (e.g., mystery prizes).
A bag from which a gift may be withdrawn (usually unseen until after chosen).
A non-specific mixed lot of a product at the supplier's choice.

From 19th c. British rhyming slang for snag (“sausage”), influenced by sense “bag whose contents are unknown”.

名词 Noun