Sure, let me get one from my room. Hang tight.

当然可以，我去房间拿一，等我一下。

youdao

When a friend says to hang tight, he is advising you to wait a little longer, not to give up.

当一个朋友说提高警惕，他正在警告你再等一会儿，不要放弃。

youdao

Hang on tight. We're off!

抓紧，我们出发了！

《牛津词典》

Stalactites have to hang on "tight" to the ceiling or they might fall off.

VOA: special.2011.04.11

Stalactites have to hang on tight to the ceiling or they might fall off.

VOA: special.2009.12.07

"Let's hang tight a bit, " says Weiszbrod, who has been guiding for two-thirds of his 42 years.

FORBES: Adventurer

For now hang tight and we'll share more info as we get it.

ENGADGET: Police investigating lost iPhone prototype raid Gizmodo editor's home

Just as it seemed small-market clubs were getting the hang of competing with the big boys on tight budgets, money is once again ruling the roost.

FORBES: Magazine Article