wiggle out of something
1. . Lit to get out of something or some place; to squirm out of something or some place. The kitten was able to wiggle out of the cage in which it had been put. The squirrel wiggled out of the trap we caught it in.
2. . Fig. to manage to get out of a job, the blame for something, or a responsibility. Don't try to wiggle out of your job! You are to blame and don't try to wiggle out of it!