An inside joke made by millennials that I was left out on. :(

When someone comes out as pansexual.

1) to admit the fact that one is sexually attracted members of his or her own gender.
2) to exit a small storage space which generally holds clothes and other items.

quote "first beer" you have at the legal age.

*You dont have to hide your drinking anymore*

"coming out of the cupboard" is a figure of speech for popular or non popular people's disclosure of their secret obsession for Harry Potter.
The term comes from the well know phrase "coming out of the closet" which refers to a person revealing that they are gay/lesbian.
The "closet" part is replaced by "cupboard" because, as we know, Harry Potter lived in the "cupboard under the stairs" in the beginning of the book series.

When a person you wouldn't expect (such as a jock or a cheerleader) openly admits to playing video games or pen and paper RPGs (like Dungeons and Dragons).

1. This is said to someone or a group of people that loses a game and or an activity.
2. When someone has no clue of what they are talking about.
3. When someone achieves an epic fail.