Sexual Act in which you slap a girl in the face with your dick, then fuck her anally, then slap her with your dick again, then fuck her in the vag, then slap her in the face one last time before walking out.
When a person, place or thing, unexpectedly dissolves into a puddle of liquid. Sometimes bursting like a water balloon or melting into a puddle, most likely killing them. Direct opposite of spontaneous combustion.
In the first X-men movie, the character Senator Kelly died by Spontaneous Liquidation.
Or
I was watching two men climb down a ladder when suddenly the first man ignited in spontaneous combustion, luckily at the same time the man man burst in spontaneous liquidation, putting the flames out.