Tip sag refers to when the tip of one's pizza slice droops down.

披萨尖儿指一片披萨顶端馅料掉下的地方。

youdao

The Agriculture Department wanted to cut back on French fries, reduce sodium, increase fruits and vegetables and require a half cup of tomato paste for a pizza slice to get a vegetable credit.

农业部想要减少薯条，降低钠含量，增加水果和蔬菜，还要求每片披萨需含有半杯番茄酱方可满足蔬菜标准。

youdao

He dropped his cell phone while he was trying to talk and eat a slice of pepperoni pizza.

他边吃着一片意大利辣香肠披萨边打电话时，手机掉在地上了。

youdao

And you're still hungry but there's only one slice of pizza left.

你还是觉得挺饿的，可现在就只剩一片披萨了。

Is it okay 课堂 - SpeakingMax英语口语达人

Is it okay if I eat the last slice of pizza?

我把最后一片披萨吃掉没问题吧？

Is it okay 课堂 - SpeakingMax英语口语达人

People who had not seen anyone else's pizza slice and those who had been given what appeared to be a small slice of pizza went on to eat the same amount of cookies.

ECONOMIST: One reason dieting does not work

While some midpriced slice providers seem to be flourishing in other boroughs, Manhattan pizzerias "are under siege, " said Adam Kuban, founder of the pizza blog Slice.

WSJ: Economics, Sliced

But Mr. Riggio said dollar-slice pizza presented less of a threat to the classic slice than rising rents.

WSJ: Economics, Sliced