A very interesting phrase!

土豪 (tǔ háo) is a Chinese term that literally means local tyrant or rich peasant、However, in modern Chinese internet culture, it has taken on a more playful connotation, often referring to someone who is extremely wealthy or generous, often in a humorous or ironic way.

And 520 is a numerical date, May 20th, which is also pronounced as wǔ èr líng in Chinese、In Chinese internet culture, 520 is often used as a code for I love you (wǒ ài nǐ), as the numbers 5, 2, and 0 sound similar to the Chinese phrase (wǒ ài nǐ).

So, putting it together, (tǔ háo 520) could be roughly translated to Rich and romantic on 520 (May 20th) or Local tyrant loves you!

Is there something specific you'd like to know or discuss related to this phrase?