• n. 游手好闲者；赖债不还的人；落魄者
• adj. 非周期的；直进式的

即被打的半死不活的，引申义懒人，二流子。

deadbeat (n.)

"worthless sponging idler," 1863, American English slang, perhaps originally Civil War slang, from dead (adj.) + beat. Earlier used colloquially as an adjectival expression to mean "completely beaten" (1821), and perhaps the base notion is of "worn out, good for nothing." It is noted in a British source from 1861 as a term for "a pensioner."

In England "dead beat" means worn out, used up. ... But here, "dead beat" is used, as a substantive, to mean a scoundrel, a shiftless, swindling vagabond. We hear it said that such a man is a beat or a dead beat. The phrase thus used is not even good slang. It is neither humorous nor descriptive. There is not in it even a perversion of the sense of the words of which it is composed. Its origin is quite beyond conjecture. ["Americanisms," in "The Galaxy," January 1878]

It also was used of a kind of regulating mechanism in pendulum clocks.

1. But do not get me wrong. My friend was not a deadbeat.

但不要误会我的意思, 我的朋友不是赖帐的人.

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2. Should a deadbeat dad's nonpayments go on his credit report?

一个不付赡养费的父亲的不付款记录应该放进信用报告 吗 ?

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3. That deadbeat never worked a day in his life.

那位懒虫终日游手好闲,一辈子也没工作一天.

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4. Everyone agreed that Mary's new boyfriend was nothing but a deadbeat.

大家都认为玛丽新交的男朋友是个游手好闲的家伙.

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5. Such before, in deadbeat heart dark boast air hostess is clever!

原来如此, 食客心里暗夸女服务员聪明!

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