A little silly but I needed to make this sound for a part in my game, I can't realistically imagine I'd ever need this sound again but I feel I did a pretty decent job on it. So I'mma uploud it here, maybe someone might need a spill or dropped gallon effect someday and will come across this and it'll be perfect.

I made this by dropping a milk gallon full of water with the lid off into my bath tub at home and recording it, and then recording the sound of me punching said plastic milk jug. I then edited it down in Audacity.