Extremely Online

Experts say its a sign of healthy friendship.

On TikTok, this tradition has been dubbed the best friend dictionary and it already hasmillions of views.

Take creator@sadielsnow, who revealed herBFF dictionaryon May 6.

Two women smiling, holding phones with custom texts; left labeled “SABRINA,” right “SAUCE.” Text ove…

If one of them uses these words, the other automatically knows exactly what they mean.

It took less than five seconds for @sadielsnows friend to guess the meaning of transcending.

Just got a raise?

What is a best friend dictionary? This trend is so relatable.

As a bonus, having your language allows you to communicate with each other on the DL.

It definitely makes you feel like you belong to a secret club.

The best friend dictionary trend on TikTok shows all friends have an inside language.