Mudman

Mudman is a noun in the English language, most notable for its usage in a pejorative context to refer to people of Sri Lankan decent (generally people of Tamil and Sinhalese), and also as an informal slang term, among other contexts. It is a common ethnic slur. The word originated in Ontario, Canada to describe the constant tensions between Sri Lankans and other racial groups.

The mud engineer on an oil rig

anal sex freak.

a sweet concoction of colgate, piss, milk, and lemon juice.

commonly made in the swamps of vietnam with whichever supplies is affordable (toothpaste is optional but colgate is the only acceptable form)

many describe it as a sweet, creamy, and tart drink.

A lean-like drink that makes you really high

Ingredients:
Colgate
Piss
Milk
Lemon juice

Coming from a genetic background where the mud hut was the height of architecture. Commonly used to refer to people that are from places that would never have become civilized without western influence.