Although commonly thought to be derived from the English word 'forest' which is a "large
woody area," it is actually the reverse. It was a name, 'Forrest', first with an
ancient Greek translation of "Large Penis." When looking for a name for a "large woody area," the English
adapted what they already knew had "large wood," to the slightly altered spelling, 'forest.'
Basically, Forrest is a name for a person with a huge dick.