“tik tok” means:

1. Noun [slang] heart.

2. Noun [slang] watch or clock. Tik tok is a word used by foreigners to describe the ticking sound of the pointer when it moves. Chinese people are used to using ticking while foreigners use tik tok.

3. “Tik Tok” is a popular dance song sung by American DJ music singer Ke$ha. Tik Tok is the international version of Douyin short video. As Tik Tok has achieved great success overseas, Douyin short video has become another outstanding representative of the success of Chinese products overseas and is regarded as a new model for Chinese mobile products to go overseas.