1. To extricate oneself from a snug thing or place by or as by twisting and contorting one's body in order to maneuver out of it. I thought I was completely stuck in the crawlspace, but I was finally able to wriggle my way back out. The jeans were so tight that I had to wriggle my way out of them.

2. To avoid or disentangle oneself from some situation, task, duty, or responsibility, especially through sly, devious, or cunning means. He always tries to wriggle his way out of doing the dishes each night, claiming he has some project or another he has to work on for school. Sally is so charming that she can wriggle her way out of any trouble she gets into. I told you two weeks ago that the whole company has to be there to do the stock count—you're not wriggling your out of it this time!