Since Ariana Grande and Pete Davidson began their whirlwind romance and quickly got engaged this month, many people have expressed surprise and confusion over the pairing.

Now, however, fans seem satisfied that they know at least one reason the 25-year-old singer is so crazy about her 24-year-old SNL star beau: He is really, really well-endowed.

More than that, though, he has the swagger and unshakable confidence of a man who knows he’s packing — giving rise to the phrase ‘big d**k energy’.

On June 21, a fan on Twitter asked: ‘How long is Pete?’

Though it was likely meant to be a double entrendre, the fan quickly followed up with: ‘OH AS IN THE INTERLUDE NOT AS IN…..ANYWAY.’

Ariana, though, took the opportunity to answer the dirtier version of the question, replying: ‘Like 10 inches? …oh f—…i mean…like a lil over a minute.’

The tweet is no longer available, suggesting that Ariana had second thoughts about discussing her fiancé’s penis size publicly — but there was plenty of time for several fans to take screengrabs of it before it disappeared.

Some seemed to see his endowment as an explanation for why Pete and Ariana are together. But one Twitter user named Tina (who tweets under the handle @babyvietcong) saw it differently, positing that it was the confidence that came with that endowment that made him so attractive.

‘Pete davidson is 6’3 with dark circles, exudes big d**k energy, looks evil but apparently is an angel, and loves his girl publicly the only thing wrong w him is that he’s a scorpio but anyway…..id married him within a month too,’ she wrote.

Within a matter of days, the phrase ‘big d**k energy,’ or BDE, became ubiquitous on social media, with thousands of people tweeting about it — and dozens of media outlets writing about it.

‘Big d**k energy (BDE) is a quiet confidence and ease with oneself that comes from knowing you have just an enormous penis and you know what to do with it,’ explained New York Magazine’s The Cut.

‘Big d**k energy (BDE) is a quiet confidence and ease with oneself that comes from knowing you have just an enormous penis and you know what to do with it,’ explained The Guardian.

Or, as Vice put it: ‘Big d**k energy is not mere confidence — though, a true big d**k energy-haver is usually quietly confident — nor is it overcompensating. It’s a self-assurance that radiates from deep within and can be felt for miles.

‘It’s an energy that immediately shifts the dynamic of a room. It is not actively seeking out debauchery or pleasure, but having it gravitate toward you.’

Others have pointed out that a man doesn’t actually need to have a big penis to possess BDE — not does a person with BDE actually have to be a man.

The phrase has, understandably, inspired a lot of jokes.

BuzzFeed’s Alp Ozcelik wanted to know, ‘What idiot called it big d**k energy and not je ne sais c**k?’

‘Love In The Time Of Big D**k Energy,’ tweeted another person. A third imagined an ‘extremely cool youth pastor’ trying to get teens excited about Jesus by asking, ‘You know who had real big d**k energy?’

AdWeek’s Sammy Nickalls ingeniously imagined how the characters of Sex and the City would handle the phrase.