look up any word, like full-donald:
 
1.
It is the world's dumbest animal.
I have recently started calling dumb guys opossum.
eg: You are a bloody opossum
by nagcoder May 08, 2005
 
2.
Figuratively: Someone whose shitty driving will soon cause them to be found dead on the road, just as actual opossums are often found.
(You are on a 3 lane freeway in the Summer. A person driving 45 mph, goes from the right lane to the middle lane, directly in front of you, without using their turn signal)

YOU: (Yelling sarcastically out the window as you pass) Thanks for the turn signal Opossum!
by Harry Hickman December 09, 2006
 
3.
When for circumstantial reasons (people nearby, thin apartment walls) you have to have a quiet orgasm, an opossum - otherwise known as "having a silent O."
"Man my parents were sitting on the couch watching a movie and my girlfriend and I were getting it on in the next room - we both had to have an opossum!"
by Kgives2me March 02, 2009
 
4.
A white hood rat
"I heard some hood rat wanted to party with you last night." "Dude, that chick was white and ghetto, shes a opossum!"
by pillpoppinfun August 17, 2014
 
5.
a white person who acts like a black person.

opossums do the same things as raccoons yet are white.
kid 1: look at that guy,he looks like he is trying to be black.
Kid 2: yeah,he is definitely a opossum.
by rodeoqueen June 21, 2010
 
6.
It's an opossum nigger!
Like that thing in Nic's backyard bitch!
by loser slut fuck January 16, 2005