To squirm is to wiggle or fidget, especially when you do so because you are nervous or uncomfortable.(verb)
When you wiggle around in your seat because you are anxious about what is coming next, this is an example of squirm.
See squirm in Webster's New World College Dictionary
See squirm in American Heritage Dictionary 4
intransitive verb squirmed, squirm·ing, squirms
Origin: Origin unknown.
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