• n. 嚇唬；絕壁；斷崖
• vt. 嚇唬；愚弄
• vi. 嚇唬
• adj. 直率的；陡峭的

詞源同blow. 或直接來自擬聲詞。

bluff

bluff: English has two words bluff, one or perhaps both of them of Dutch origin. The older, ‘hearty’ [17], originally referred to ships, and meant ‘having a flat vertical bow’. This nautical association suggests a Dutch provenance, though no thoroughly convincing source has been found. The sense ‘flat, vertical, (and broad)’ came to be applied to land features, such as cliffs (hence the noun bluff ‘high steep bank’, which emerged in America in the 18th century).

The word’s metaphorical extension to people was at first derogatory – ‘rough, blunt’ – but the more favourable ‘hearty’ had developed by the early 19th century. Bluff ‘deceive’ [19] was originally a US poker term. It comes from Dutch bluffen ‘boast’, the descendant of Middle Dutch bluffen ‘swell up’.

bluff (v.)

1839, American English, poker term, perhaps from Dutch bluffen "to brag, boast," or verbluffen "to baffle, mislead." An identical word meant "blindfold, hoodwink" in 1670s, but the sense evolution and connection are unclear; OED calls it "one of the numerous cant terms ... which arose between the Restoration and the reign of Queen Anne." Extended or figurative sense by 1854. Related: Bluffed; bluffing.

bluff (n.1)

"broad, vertical cliff," 1680s, from bluff (adj.) "with a broad, flat front" (1620s), a sailors' word, probably from Dutch blaf "flat, broad." Apparently a North Sea nautical term for ships with flat vertical bows, later extended to landscape features.

bluff (n.2)

1844 as an alternative name for poker; from bluff (v.). As "an act of bluffing" by 1864.

1. He tried to bluff his way through another test and failed it.

他試圖再次在考試中蒙混過關，但卻露餡了。

來自柯林斯例句

2. Wade was a hearty, bluff, athletic sort of guy.

韋德是個精力充沛、率直、運動型的人。

來自柯林斯例句

3. What we're at here is a game of bluff.

我們此時陷入的是一場騙局。

來自柯林斯例句

4. The Socialists have decided to call the opposition's bluff.

社會黨人已經決定接受對方的挑戰。

來自柯林斯例句

5. He is kind and friendly despite his rather bluff manner.

他為人厚道,待人親切,雖然態度有點粗魯.

來自《簡明英漢詞典》