Related Clues:

• Wiped off the blackboard
• Now blank
• Exhausted, with "out"
• Used a sponge
• When data's been ___ ...
• Completely obliterated
• Shook an Etch A Sketch
• Used a squeegee
• Blotted out
• Used a paper towel
• Took off the board
• Exhausted, so to speak
• Rubbed out, expunged
• Removed by rubbing
• Rubbed out, deleted