Dank means something that's really cool or epic.

In Meme friendly version,

Dank Meme refers to viral memes which are cool, super funny, epic, awesome, blah blah.

Dankest is the best version of that ( as mentioned in the high school grammar class )

Also there's also a site called dankest.co which sells meme worthy shirts.
Dudeee, this is the dankest meme I have ever seen on the internet.
by Usernamenotavailable December 28, 2018
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The sickest or illest shit ever.
Yo dawg take a hit off this tweed. This shit is the dankest. yo dawg that car is the dankest
by William Waldrep June 15, 2005
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Dankest is something thats cool or 420 blaze it
Dankest is something that cool and memes n stuff

Bradley: YOOO LOOK AT THIS DANK POST WE GOT HERE DAMNNNN

CJ: LET ME SEE THE DANK STUFF

Darryl: I WANNA TAP THAT DANK STUFF

Nathan: Why cant we eat the dank stuff *wink*

Dankest can be used for many things
by Dankest101 January 3, 2017
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The best ever. Deagle Armor Nade Kit Eco Save Tyrants. The best deagles around. Period. No relation to Franklin Turtle. Born to be dank.
Watch your back we are about to attack; The Tooters Feat. DANKEST
by Franklin_Trutle May 3, 2009
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i just did 6 hits of the dankest shit man that herb is crazy!

that weed is the dankest!
by the original mofo BIATCH June 24, 2004
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Dankest can be used as many things
Dankest is something that cool and memes n stuff

Bradley: YOOO LOOK AT THIS DANK POST WE GOT HERE DAMNNNN

CJ: LET ME SEE THE DANK STUFF

Darryl: I WANNA TAP THAT DANK STUFF

Nathan: Why cant we eat the dank stuff *wink*

Dankest can be used for many things
by Dankest101 January 3, 2017
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Ha, did you see that person call james the dankest memer 152 times?
by ytehfdawe\rsfd October 28, 2017
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