The night before Dankmas, which is a holiday similar to Christmas (or "X-mas" by the millennials) expect very drug centric. Specifically referring to Weed.

Dankmas is (unofficially) April, 20th of every year.
"Holy shit!", Jeremiah said. "It's Dankmas Eve already!?"
"Yep", replied Jaquan with glee.
"I can't wait to see what Dank-A-Claus brings me this year!"
by Dank Meistersinger November 10, 2015
Get the dankmas eve mug.