给力

gěilì

Literally says

to give strength

Actually means

awesome, impressive, it really delivers

When to say it

All-purpose praise for people, teams, food, anything that comes through for you. Safe and warm, works with bosses, friends, and strangers alike. Slightly retro in big cities now, but everyone still understands it and smiles.

Hear it in the wild

今天的报告写得真给力。

Jīntiān de bàogào xiě de zhēn gěilì.

Today's report is really impressive.

这家火锅太给力了。

Zhè jiā huǒguō tài gěilì le.

This hotpot place is amazing.