June 31 

Sandwich day. In this day you can only eat sandwiches for whole 24 hours

Someone 1: Hey lets buy everything to make sandwiches.
Someone 2: you throwing out party?
Someone 1: no. Tommorow is june 31.
Someone 2: oh right how could i forget that

June 31 by Jestem człowiekiem January 3, 2021

June 31st 

The fictional last day of the month of June. Generally to be used as an ironic statement in reference to an event.

My birthday is on June 31st.

I'll pay you back after the 31st of June.

June 31st by Erick Landrider March 20, 2009

June 31st 

A special extra day of Pridemonth, where Superstraight pride is celebrated.

Boy, it's the 31st of June - and superstraights are so valid!
I've stopped being superphobic ever since June 31st.

June 31st by q_Maxi_p June 6, 2021

June 31st

International Dating Luck Day. On this day, many people claim to finally get a girlfriend.

"Dude, it's June 31st! I'm gonna get crazy lucky on Tinder!"

June 31st by Anonymousway December 11, 2025