A sexual fetish, where one enjoys things that are wet and messy, in that wet items are applied to their clothes, or skin, and are messy.
This 'fetish' does not include the application of urine, feces, or even semen, but relates to one's sexual arousal from having their skin or/and clothing covered in other messy and wet items.
Whipped cream, oil, shaving cream, mud, and even household food items.
Things like peanut butter, chocolate sauce, custard, are all applicable, as they are wet, and messy.
In many instances, the subject is pelted with the materials, such as cream pies, juices, and other liquid goods.
Mud Wrestling also can be part of enjoying the fetish, in that the participants are enjoying not just the touching, but the dirtiness and goo of the mud.