As milk ages, and curdles, it releases gas. If in a tight container, such as a milk jug, pressure will build up until the top explodes outward, creating a "sploot."
The thing you turn into when you think its a good idea to take a mouthful of your drink while at your friends house and they make you laugh- making you spit your salivated drink all over their kitchen floor and pool table
Sploot is the descriptive word explaining what happens when you press down with your finger on a marble, or squeeze soap between two hands forcing it to shoot out.
Splooting was coined in the 50's in Bristol by international set and stage designer Rodney Ford