road stud
The men you find anywhere in the UK where there are roadworks occurring. Recognised by high-viz vests and hard hats. The function of the Road Stud is to stand around at the roadside in threes; two doing absolutely nothing but chatting or looking at a mobile phone whilst only one is actually working. Known as Road Studs because they will stare, leer and/or catcall any vehicle passing with female drivers.
Beware Road Studs ahead