Senior Member
It's a Physiotherapy term I believe. It's from a Video. Any idea what is a "Buster" here?

So if the Extension is good we will will use now "Buster" (Or maybe booster I'm not sure sorry) I do extension of the thigh...
  • heypresto

    Senior Member
    English - England
    In which video did you hear this sentence? What was happening at the time. 'I do extension of the thigh...' doesn't sound as if it's spoken by a native speaker. What was the complete sentence?
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