A male masterbating while hanging upside down, trying to catch the cum in his mouth on the way down.

1: An opossum is a marsupial from the United States. A Pasadena Opossum is presumably one from Pasadena. There are three cities in the US with this name, one in Texas, one in California and another in Maryland.

2: A character from the Crash Bandicoot series of video games. Pasadena is a tall slim female created by eccentric scientist Dr Van Clutch to compete in cart races around his theme park. Pasadena has a Texan accent and her long tail is used as a third hand. She comes across as a bit of a stereotype valley girl. It is obvious she fancies Crash, though the feeling is not mutual.

The act of catching a live opossum, then proceeding to slam it into a solid object. The tail is usually used as a point of leverage to incapacitate the animal.

Not much is known about this creature, often attacks on sight, and always seems to be hungry. Strength and agility are defining characteristics. It has been seen terrorizing families of large mammals such as humans, bears, and transformers. Spotted in central Africa and northern Poland this animal was the main import of Rome, alive, because many Romans became board with simple burnings (Agitated Mother Opossums were later replaced by lions because the FCC said the display of violence and unmerciless killing by these creatures gave no chance of survival for the victims)

Super excited. Exuberant.

that bloody mess on the side of the road

FAKE, Faker, fake as fuck, pretending to be something you are not.

Poser.
Mimicking or mirroring someone or others in a personal or social environment to aid in negative intentions with malicious intent later on.

Most common in highly insecure, jealous, individuals who lack since of self, and feel they must try to bring others down in order to make themselves feel better about themselves, and the horrible things they do.
Highly promiscuous and incapable of being faithful in relationships (cheaters), liars.
Ignorance at its finest!