A buffoon or imbecile.
A road vehicle (often a trailer) for the transport of liquid fuel, particularly aviation fuel at an airfield.
A fuel metering/delivery pump at a filling station.
A mobile water tank deployed to distribute fresh water in emergency situations where the normal system of piped distribution has broken down or is insufficient.
A filthy, slobbering person; a sloven, a villain, a fiend, a louse.
A drunken or alcoholic person.
A worthless person.