December 13th 

The day where you have to pinch your shortest friend every time you see them.

Tall friend: Hey come over here! It's December 13th

Short friend: Oh noooooo....

December 13th by Quack Quack Wonder Woman November 1, 2019

December 13th 

The day you kiss your girlfriend/boyfriend or ask out your crush

The day I will kiss my girlfriend is December 13th

December 13th by Mah732 December 11, 2019

December 13th 

December 13th is the day where sMeXy💕 people are born.. soo sLaP thEm iN tHe bAcKkk 😈

your birthday’s December 13th Emily? THeN u GeT a SlAp

December 13th by typical_addri November 13, 2019

December 13th 

December 13th Natitonal Kiss your bsf day! :p

Girl 1: Hey its December 13th! *kiss*

Girl 2: ? What was that for??

Girl 1: Search December 13th on urban dictionary to find out!

December 13th by ` ` || •~ Izzy~• || ` ` October 3, 2021

December 13th 

National kick your best friend ALL DAY day

Me:*kicks*
Brandon: “ hey what was that for!”
Me: “it’s December 13th”

December 13th by dontkickme December 10, 2021

December 13th 

Both males and females possess mammary glands. On this day the females attempt to milk their partners in order to commemorate the evolutionary destiny of our species.

Sonia: Paul! My nipples are worn and tired. For once my teets may rest in peace as it is December 13th and I will caress your manly mammary glands in my palm.

Paul: *facepalm*

December 13th by Paul'sHOTteets March 19, 2010

December 13th 

December 13th: At 12:00am to 12:01am drop dead no matter where you are.

On December 13th everyone dropped dead.

December 13th by Hajdjebwhdjrnshuxkdnei December 6, 2019