Chinese phrase translation: 冷笑话 (lěng xiàohuà) sick jokes

冷笑话 (lěng xiàohuà) sick jokes; cold humor
usage:

冷笑话”是指由于某些原因导致一个笑话不能使人发笑。但并不是所有的冷笑话都难以发笑，有时不好笑正是该笑话的笑点。
A “冷笑话” is when, due to whatever reason, a joke does not elicit laughter. But this does not mean all “冷笑话” do not make people laugh. Sometimes, the fact that the joke is unfunny is the punchline.
Sentences:

1、Lěng xiàohuà yǒushí ràng gāngà de qìfèn biànde gèng zāogāo.
冷笑话有时让尴尬的气氛变得更糟糕。
Sick jokes sometimes make an awkward atmosphere even worse.
2、Yībān láishuō, lěng xiàohuà de hòubàn bùfen zǒnghuì chūhū rénde yìliào.
一般来说，冷笑话的后半部分总会出乎人的意料。
Generally speaking, the latter part of a cold-humor joke is always outside what anyone expects.