The best bit is that many of these are still frequently used by official channels.
Rapid Unscheduled Disassembly, or a RUD, is often the standard way to announce a rocket went pop.
Engine Rich Exhaust is used less officially, but is often used as a way of encompassing a multitude of issues like an incorrect fuel mixture melting internal components, a cooling system failure melting internal components, incorrect material use or manufacturing melting internal components, and plenty of other things that can cause internal components to melt. Fun fact: if a rocket flame suddenly shifts to a bright green, that's a textbook sign of engine rich exhaust! The green is caused by copper entering the exhaust plume which gives a green glow when burned, and typically the only place you'll find copper is the fuel and coolant piping inside the engine, where it is very much supposed to stay (note that a bright green flash when an engine ignites is normal, it's only if an already lit flame turns green)
Rapid Unscheduled Disassembly, or a RUD, is often the standard way to announce a rocket went pop.
Engine Rich Exhaust is used less officially, but is often used as a way of encompassing a multitude of issues like an incorrect fuel mixture melting internal components, a cooling system failure melting internal components, incorrect material use or manufacturing melting internal components, and plenty of other things that can cause internal components to melt. Fun fact: if a rocket flame suddenly shifts to a bright green, that's a textbook sign of engine rich exhaust! The green is caused by copper entering the exhaust plume which gives a green glow when burned, and typically the only place you'll find copper is the fuel and coolant piping inside the engine, where it is very much supposed to stay (note that a bright green flash when an engine ignites is normal, it's only if an already lit flame turns green)