Masturbating, usually multiple times a day, while one is ill in hopes the orgasmic stimulation will help oneself feel better and pass the time while on the road to recovery.
When I had the flu last year, every joint in my body ached. But I would sicksturbate ten times a day for two weeks and felt much better.
Any amount of money earned above and beyond the expected. Examples: finding a $20 on the ground, winning money while gambling, buying something cheap and selling it at a higher price.
Money earned at work as part of salary or normal hourly wages would not be considered walking slicks. However, any additional money earned, such as a bonus, would be considered walking slicks.