Definitions by Bama-lama-ding-dong

Tanking

To do a headstand with your head in a toilet bowl. A variant of Planking.

Oh god, I went in the bathroom and John was tanking in the Urinal !!!

The act of Scratching your Knuckle in a group of people, and acting like nobody saw you.

Damn, he just pulled a sneaky hal right in front of us.