: It is common in "GRWM" (Get Ready With Me) videos where creators show their transformation from a "dusty" state to a polished one.
Classically refers to having a large chest, but in this slang context, it adds to the rhythmic "crusty/dusty" rhyme. busty and dusty
The term is typically used in a humorous or self-deprecating manner. : It is common in "GRWM" (Get Ready