Top definition
The red circle with a line through it which implies no to whatever it is placed over. A common use of the nullski is over a drawing of a burning cigarette to deliniate a no smoking area.
In the movie Ghostbusters the creators placed a nullski over the image of a ghost on the team's car to demonstrate that they would eliminate ghosts.
by powfiend November 09, 2013
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug