A term used mostly by gay men to depict something unpleasant, foul, or undesirable. Often replaces words such as stupid, dumb, gay, etc. Ugh, this is so vaginal, I have to work a 9 hour shift today! Those pants are straight up vaginal.
Warning signs such as fear and/or nervousness around other dogs, displays of aggression only under certain circumstances (while on leash, in the presence of food, in the presence of the owner, etc.), or most commonly, over-the-top play behavior can be seen at any stage of the dog's development.
Pits were created to be the ultimate fighting dog. Most pits will end being dog aggressive, which is what they were bred to be. The reason why pits are being dumped at shelters is because the naive owners soon discover that it is NOT All in how you raise them when their pit mauls or kills after reaching maturity. You CANNOT  love a dog's instinct out of it.