Dank pussy is a stoners reference to a stinky vagina. Most commonly girls who have vaginas thats smell could overtake the smell of Pine-Sol clorox cleaner.
Jim: Yo, bro. You tap that girl last night?
Bob: Yeah dude, but it wasn't that good.
Jim: Why not?
Bob: She had a dank pussy, yo. I almost died. I smelled it, and I just stood there dizzy as fuck looking like I was getting ready to take a Mortal Kombat finishing move. :(
The act of getting a wank but instead of it being with somebody's hand, its off a pussy. In other words sexual intercourse.
Can be also used to describe a person or just a thing you can say whenever you feel like it
I'm horny as fuck scan, I'd fucking love a pussywank.
Ah fuck lad, thats a pussywank