Short for prophylactic, used before the term "condom" was coined. While the word prophylactic itself refers to
anything used to prevent disease, such as toothbrushes, it was commonly used to refer to condoms and anti-STD ointments. When someone
said "wear a pro," they meant you should put a condom on during sex.
The victory girls are on the loose and
soon will
cook some poor guy's
goose! The G.I. Joes must be more wary of the diseases they may carry. Venereal disease is on the rise, so take your pros, be well and wise!