Top definition
An action performed by Woodknockers to ensure a steady flow of good luck.
Scruffy: "Dude, my mom has no idea where I am right now, she's none the wiser."

Ferguesson: "Oh man, you'd better air knock on that, there's a tree all the way over there."
by Internet QA Group December 19, 2012
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