Bomb-ass weed from some mysterious country (perhaps jamaica?) that will knock you flat on your ass. It's said that only the biggest pot-heads are worthy to smoke it, and only the richest mutha-fuckas can afford it.
Charlie- Hey Coker, what weed you sellin'?

Coker- I got that purple dank.

Charlie- Damn son! You 'bout to make a dime! Can you cut a brother a deal?

Coker- Fuck you! I's tryin to run a business!
by coke-head November 27, 2008
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Smoke Dank Purple (or SDP for short) is a phrase shouted every 4:20, wether it be PM or AM, in an as loud and extra way as possible. This phrase Originated at 21st street Co-op in Austin and has been shouted there every day since the early 2000's. It can also be heard around the city of Austin on special occasions such as Eeyore's Birthday Party or 4/20.
Benny: " Hey, it's 420"
Ashley: "Ohh shit!"

Benny and Ashley: "SSSSSSMMMMOOOOOOOKKKKEEEEEEE DDDAAAAAAAANNNKKK PUUURRRPPPLLLEEEE!!!!!"
Everyone: "Smoke Dank Purple!"
by Trustcece May 23, 2019
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