The phrase is labelled as slang in the dictionary.

这个短语在这本字典里被注为语。

Maybe you have social faults such as snobbishness, talkativeness, using slang, etc. which drive away new acquaintances.

也许你有像势利、长舌、说语等这样社交缺点，驱走了你新相识。

Actually, we can use the British slang to express it, that is: hard cheese.

(cheese,虽然是“乳酪、奶酪”意思，但是它源于波斯语“chiz 事情、东西”) 表示不顺利、倒霉。

Most slang has short currency.

大多数语只通用一时。

We know this because kid and napper, the two parts of the compound, were slang of the sort that criminals might use.

我们知道这个复合词两个部分kid 和 napper 是这种罪犯们可能用语。