4:20

First, there is no police code "420". There are no police codes referring to any particular drug, marijuana included. It's time to bury this myth.

4:20 was the designated time for a small group of smokers at San Rafael High School in California to meet at a specific location and light up. The number originates some time around 1971. It has since been adopted by smokers the world over as the "universal time to get high."

lol 420 smoke weed every day.

Floor 20

It's a metaphor for safe choices, wearing your helmet, buckling your seatbeat, and taking your flintstone brand vitamins.

We were chillin' on floor 20, being all safe and stuff.

Oct 20

National French kiss day

OcT 20 is the day

November 20

National throw your short friends into a industrial grinder day

November 20
Me: Say your goodbyes..
Short friend: Wait wha-AHHHHHH

January 20

If your born on this day then you got a huge dick and can pull any girl with just a look. You are also going to have many girlfriends and are an extreme athlete.

Yo it’s my birthday, January 20

Friend: woah cool you just have a huge dick and a hot girl

March 20

A legendary day of two fandoms emerging with their newly-released games, the most wholesome gathering of two unlikely and polar opposite games, one of relaxation, one of destruction. Animal Crossing and Doom

Person A: Hey, you hear about March 20?
Person B: Oh right, isn't that when Animal Crossing comes out?
A: Yep!
Person C: Its also when Doom Eternal comes out!
B: Oh wow! I'll consider buying both, the two fandoms are really wholesome when they interact!

a 20 pinter

A 20 Pinter is the amount of alcohol that it would take before trying to seduce a person that you do not fancy at all.

"Hey mate she is staring at you" Are you serious she is at least a 20 Pinter"