WAM, aka Wet And Messy or Sploshing, is a kink where the subject gets very dirty (and/or completely covered) in one or more non-bodily substance(s).

More exactly, "Messy" refers to substances, whereas "Wet" refers to water coverage, aka Wetlook: soaked (see-through) clothes, clothed or erotic showers, water activities while nude, underwater sex, and most other kinds of aquaphilia.

Subjects may be clothed or nude; specific acts may range anywhere from G-rated (e.g. Nickelodeon slime, game shows, playing in the mud, pieing from classic slapstick & cartoons) to X-rated (e.g. sex in a mudpit, erotic foodplay, BDSM-style humiliation & submission, kinky pseudo-TF).

Essentially any non-bodily substance can qualify, but common substances and overlapping themes include:

• mud / mud covered
• coverage via quicksand or tar pit
• food play / food fetish
• slime & goo
• chocolate, icing, whipped cream, or other deserts
• getting pied in the face (via Toon, clown, etc.)
• liquid latex, goo creature, and other fantasy/scifi substances