Meaning of black up | Babel Free

Definitions

1. To become or make (something) black or darker.
   intransitive, literally, transitive
2. To put on or wear blackface makeup.
   intransitive, transitive
3. To make something (e.g. a film, cast, story line, etc.) more racially black in character; blackenize.
   transitive

Examples

“Cantor starts blacking up, right then and there, painting his face with a burnt piece of cork.”

CEFR level