Mountain Tab

Having "intimate relations" or "doing the horizontal mambo" with a women of the round body type.

Or Porking a fatty.

A small identifier worn above the 10th Mountain Division's unit patch. It signifies that the soldier is not only a member of said unit, but also completed menial tasks while being hazed, and climbed a mountain (ie banged out one of Watertown's many livestock sized humans that identify physically as "female")