yardbird
n.
"convict," 1956, from yard, n.1 + bird, n.1, from the notion of prison yards; earlier it meant "basic trainee" (World War II armed forces slang).
| 词汇 | yardbird | 
| 词根词缀 | Online Etymology Dictionary yardbird n. "convict," 1956, from yard, n.1 + bird, n.1, from the notion of prison yards; earlier it meant "basic trainee" (World War II armed forces slang). | 
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