From Longman Dictionary of Contemporary Englishblank something ↔ out phrasal verb1 COVERto cover something so that it cannot be seen The actual names had been blanked out.2 FORGETto completely forget something, especially deliberately I tried to blank out everything he had said. → blank→ See Verb table
Examples from the Corpus
blank out• His first impulse was to turn around and walk away, blank her out, pretend he hadn't even seen. 