1. past tense of blank; to suddenly forget or be unable to remember something
Usage: informal
2. past tense of blank; to ignore someone completely or refuse to acknowledge them
Usage: informal
3. past tense of blank; to cover or obscure something, making it empty or void

Examples

• I completely blanked on her name during the introduction.
• When I saw the test question, I just blanked and couldn’t think of the answer.
• She blanked me in the hallway after our argument.
• He blanked his former friend at the party.
• The censor blanked out the inappropriate words.
• The snow blanked the entire landscape in white.