it's the commonly accepted term for exceeding the max thrust rating (EPR or N1)
It is not the same as 'overspeed' which generally means a redline exceedance.
From what I understand from the above, you are contradicting yourself... Can you put it into other words?
I mean, your can exceed max thrust without exceeding N1 or EPR. Plus from what I read above, you are saying that a thrust exceedance is equal to exceeding N1 or EPR. That would in my opinion be the definition of an overspeed ("redline exceedance").