Valentine's day man 

A man who drinks a lot and uploads videos to the internet singing a song about Valentine's Day, is very dangerous, it is recommended to run. His name is usually Martin.

First person: OMG is the Valentine's day man, every body run
Ho No! He got me, HELP!!!! Ahhhhhhhh!!!

Valentine's day man by ThePopTrox February 17, 2017

Valentine’s Day Baby 

1. A person who was born in November, therefore conceived in February.

2. The reason why there are so many November birthdays.

Hey isn’t your birthday in November? You’re a Valentine’s Day baby, hahaha!!!

Valentine’s Day Baby by icd0214 June 2, 2019

Valentine's Day Surprise 

When you get your significant other pregnant on Valentine's Day without them realizing, (or vise versa getting pregnant without them knowing)

It's a sick prank, but hopefully 9 months later it won't be so bad!

John: "What are you getting Lucy for V-Day, dude?"

Fabio: "Flowers and chocolate! And a Valentine's Day Surprise, but she won't find out about that for a few months."

John: "Yo! I was a Valentine's Day Surprise to my Dad!"

Valentine's Day Surprise by Smirking and Crying Alone September 29, 2019

Valentine's Day 2 

"Valentine's Day 2: For The Gays"
The day after Valentine's Day that you celebrate with your partner because your/their homophobic parent(s) won't let you see each other on Valentine's Day

"Sorry, my mom won't let me celebrate Valentine's Day with you"
"It's ok, we can organize something for Valentine's Day 2!"
"huh?"

Valentine's Day 2 by Cooblap February 10, 2020

Valentine's day denier 

A person who is single on valentine's day and complains about it on twitter all day. They often claim that valentine's day is just a way for chocolate and greeting card companies to get money, not knowing that the practice has been around for 600 years. Because of their attitude, they will remain single the rest of their lives.

J: so how's it going for k?
B: not well, he's posting stuff about how valentine's day is a Hallmark holiday because he's single.
J: sounds like a Valentine's day denier.

Valentine's day denier by Local_eldritch_gryphon May 22, 2021

Valentine’s Day of Doom

When Valentine’s Day falls after Friday the 13th, it is considered the Valentine’s Day of Doom. Arguments, breakups, and cheating usually occurs on the Valentine’s Day of Doom.

It’s Valentine’s Day and my girlfriend dumped me for another guy. But yesterday was Friday the 13th so I guess that’s just how things are on the Valentine’s Day of Doom.

Valentine’s Day of Doom by OG Zus February 13, 2026

St Valentine's Day Massacre 

a) an infamous massacre committed by Al Capone on St Valentine's Day 1929
b) when one breaks up with their significant other on St Valentine's Day

Do not commit a St Valentine's Day Massacre, definition b) , on your significant other.

St Valentine's Day Massacre by Uncle Dimma March 3, 2015