Meaning:
The transliteration from the English word “respect,” this term first caught on among Chinese rappers but then became known among Chinese netizens, especially fans of showbiz idols. People use the term in conversations to mean “Someone is awesome; I totally admire them.”
Example:
A: 我一年级的时候已经会两千个英语单词了。
Wǒ yīniánjí de shíhòu yǐjīng huì liǎngqiān gè yīngyǔ dāncí le。
I already learned 2,000 English words as a first-grader.
B: 学霸厉害了，我只能说瑞思拜！
Xuébà lìhài le，wǒ zhīnéng shuō ruìsībài！
You are a top student, and all I can say is that I totally admire you.