National, wear a watermelon as a helmet day.
Friend 1: "why are you carving a watermelon?"
Friend 2: "tomorrow's December 15th, duh"
Friend 1: "oh yes, of course"
by Stoopidhat October 25, 2019
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A day where two friends became best friends. What happened that day? Well you are about to figure out how these two bros formed a covalent bond! It was a crazy adventure that lasted all day. The two bros were straight up pounding each other from all angles: left, right, up, down and center. While they were pounding so GODDAMN hard, they were teleported to the Death Star. A challenger appeared at the Death Star. Who was it? DARTH VADER!!! The two homies battled Darth Vader while they were still pounding each other. They defeated Darth Vader because Bro 2 hit Darth Vader with a nut to the face :). A few moments later, Thanos appeared. How did he appear? Bros 1's ass was pounded so fookin' hard, it was big enough for one of Thanos's universe traveling portals. Thanos came put of the portal and he was in complete disbelief. The two bros decided to fuck Thanos all over. Bro 1 whipped put his glock and shot Thanos in his fookin' purple face. After the attack from Thanos, Bro 2 already nutted 40 times, while Bro 1 nutted 38 times. The day was almost over, and the bros were still pounding the shit out of each other. Five minutes later, Chris Pratt appeared and gave both the bros medals for defeating Thanos and Darth Vader. Chris Pratt later joined them in the pounding sessions. KEEP POUNDING
BRO 1 "MAN DECEMBER 15 WAS AWESOME, I CAN'T WAIT FOR NEXT ME!!!"
BRO 2 "BRUH SAME!!! RUMOR HAS IT THAT MORE CELEBS WILL BE JOINING US!!!"
BRO 1 "Lets ask our friends if they wanna join."
Random tall blonde friend "This sounds fake, I'm out."
BRO 2 " Fookin Pussy."
by BIGSEXYSHARK November 14, 2018
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National cuddle with your s/o and watch a musical day!!!
Chill out with your bf/gf and watch Hamilton or Les Miserables or Dear Evan Hanson and just have a good time
Me: hey bae
Them: yes?
Me: it’s December 15th!
Them: *picks me up* LETS GO!!!
by Tsunami-Sama December 16, 2019
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Hey bro gonna take part in the event on national ejaculation day december 15th
Sure i already told my girlfriend about it
by Ur mum loves ur freind December 13, 2020
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December 15 is the day where you get to slap any girl named Gianna
Friend 1: what day it is

Friend 2: December 15 why?

Friend 1: guess I get to go slap Gianna
by VsCo.sksksk November 7, 2019
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Brady "Oh hey it's December 15th you know what that means"
Alex "I know what it means after practice i'll give you that slop"
by Tomothon December 7, 2020
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Kiss or hugs on only December 15
by Hehehe 😂 December 4, 2019
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