What is "haigui"

Haigui is a Chinese language slang term for Chinese people who have returned to mainland China after having studied abroad for several years. These graduates from foreign universities are highly sought after in Chinese business, and thus can gain employment ahead of those who have graduated from Chinese universities. However, the salary demands of haigui are considered unrealistically high by some employers. The homophonic (also hǎiguī) meaning " sea turtle" is sometimes used as a metaphor since sea turtles also travel great distances overseas. The term "overseas turtle" is also used.