Originally Posted by
terrymorse
Semantics. Two phrases that describe the same phenomenon, with the second one being more accurate.
If you hear a "boom", the tire came off the rim.
Could be, could be not. It is you who introduced the ideas of the tire coming off the rim and "boom" sounds, not the OP, and it seems a common distinction to me that a "blow out" is sudden, rapid, total air loss and a "blow off" is indeed the tire coming off the rim. In any case, it's easy for the OP to clarify that.