CoinPin

CoinPin is the non-canon ship between the characters Coiny and Pin from the web-series BFDI.

Moments in the show where that hint to a liking between one another are usually called: "CoinPin Moments." Most of these CoinPin moments come from Season 4a or BFB Pre-Split.

There is a chance the ship could become canon in the future. However, those odds are quite low.

"Hey do you watch BFDI?"
"Yeah! What's your favorite ship?"
"CoinPin."

Fireafy

Fireafy (noun) is a term used for the relationship between to characters from a show called BFDI; Firey and Leafy. Usually, this term is used for fanon ships of Firey and Leafy.

Fireafy is the most agreed upon BFDI ship.