The act of engaging in sexual relations with an unsightly woman while she is asleep or pretending to be dead…preferably in the middle of a dark country road at night
Last night I drove by a passed out homeless chick on my way to the mountains. I pulled over so I could tag her like a possum.

or

Everytime I see you without makup sleeping on the ground, it makes me want to tag like a possum.
by Dashboard Light August 21, 2012
Get the Tag like a possum mug.