To make void; to erase.
I blanked out my previous entry.
To ignore (a person) deliberately.
She blanked me for no reason.
To prevent from scoring, for example in a sporting event.
England blanks Wales to advance to the final.
To become blank.
To be temporarily unable to remember.
I'm blanking on her name right now.
Damned; accursed (from the euphemistic printed form d—d)