It's not as entertaining than say a dynamite explosion, but here's an example: https://www.youtube.com/watch?v=ixIOEPnsgbI
Gassing (or smoke, not sure which) starts around 15 sec. Plenty of results for 'LiPo explosion', 'overcharge lipo', etc.
A LiPo fire is a chemical reaction, it cannot be extinguished by traditional fire extinguishers (i.e. smothering does not extinguish, it's creating its own fuel) -- you have to wait for the battery to burn out and then extinguish the remains on fire. Treat your batteries (and electronics with batteries in them) well, folks.