From the nice people at the FAA (I'm sure similar language can be found around the world):
"Maximum continuous thrust", with respect to turbojet engines, means the maximum jet thrust that is developed statically or in flight, in standard atmosphere at a specified altitude, within the engine operating limitations established under Part 33, and approved for unrestricted periods of use.
This would mean any thrust higher than MCT has a "restricted period of use". But if you want to trash the engines and then wonder why you have the highest IFSD tally at your company, go on ahead.