4/21

The day after National Marijuana Day. Also known for parents as National Drug Test day.

Billy: I'm going to smoke a shitload of pot on 4/20!

Bob: Your parents are psycho. I'm sure they are gonna make you piss in a cup on 4/21.

4/21 by Fuzzy Pinata April 20, 2010

4/21

4/20 = National weed day.
4/21 = National drug test day..

Tom: Hey Billy, 4/20 was lit bro
Billy: Not for me, my parents gave me a surprise drug test on 4/21

4/21 by Kezsailu Gang June 22, 2016

4/21

the day after national marijuana smoking day, the national pixie stick snorting day was established last year by Brandy and Emma.

shit bitchits 4/21, ima empty this pixie stick up my nose and snort it in the middle of the road while trying not to get my nigga ass run over.

4/21 by Emma and Brandy October 29, 2007

4/21

national burnout day

man, dont make me do anything, its 4/21 im to burnt out

4/21 by krisssssssssssssssss May 9, 2007

4:21 

the day after (mef know what i mean)

Stoner # 1 - duude yesterday....highest i've ever been.
Stoner # 2 - welcome to 4:21 mannnnn

4:21 by osama bin blazen February 7, 2008

4:21 

a minute afta 420

421 neva to late

4:21 by Tyz Gurl January 20, 2003

4/21

When you forget to get weed for the actual 4/20, and can't find any because everyone is using theirs, or you are otherwise unable to celebrate on the actual day. So you therefore celebrate the day after...4/21

Sarah: Hey, do you have any weed?

Megan: No, and I can't find any from anyone else!

Sarah: Damn... 4/21?

4/21 by classy pseudonym April 20, 2010