To mosey about with no real definite purpose or direction. To get into something, and maybe to be sneaky about it. To do random, non-describable activities. To get into, to check out, to be sly.
"I'm going to skrinker in my closet to find an outfit to wear."
"I goofed off at work and just skrinkered online all day."
"I told him to skrinker up some plans for our date tonight."