Verb, transitive: "To splash my boots" is a British army expression meaning to go for a pee in the outdoors (on manoueuvres, etc. when a regular lavatory isn't available.) The action of forceful micturation against a tree or similar tends to cause a splashback onto the boots.
I'm bursting for a piss. I'm just off to splash my boots.
Adjective: Describes the appearance of soldiers in the field, who are usually have worn equipment, dirty uniforms, and unofficial additions or modifications of their kit. This makes them look tough and professional. People wanting to imitate that look will batter their new equipment, grow stubble even if they have the chance to shave, and so on.
Derived from 'rough'.
"Are you growing that beard because your chin is cold or do you just want to look more rufty-tufty?"
Used when someone running a project or task needs to explain to people he is answerable to, who don't have the skills or knowledge to understand what is going on, that the project is still at an early stage (prototype or rough cut) and will significantly improve in quality of appearance and content by the time it is finished.
This is the initial look and feel which is very rough but we are going to spoodle it all up and make it more betterer before we finish.