Flight attendants might be responsible for ensuring the safety, security and comfort of a plane full of passengers, but they still have time for a quick gossip about who they fancy on the flight.
However, as I'm sure you can imagine, there aren't a lot of private places to discuss which traveller has piqued their interest on an aircraft - so cabin crews have had to get creative.
To ensure that their whispers about the hottest holidaymakers aren't heard by the general public, stewards and stewardesses apparently come up with a secret language to communicate covertly with.
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So, if you overhear the cabin crew coming out with some strange words while checking the overhead lockers are secure, it's highly likely that they are speaking in code.
And thanks to the late Qantas steward Owen Beddall, us lot have some inside knowledge on the lingo which airline staff use to talk about passengers while thousands of feet in the air.
He rose to fame in 2014 after releasing his memoir Confessions of a Qantas Flight Attendant, which exposed the secrets of the industry as well as what a host of celebrities got up to onboard.
The Australian author, who passed away in 2016, gave people an insight into what goes on behind-the-scenes during a flight and how the crew communicate that they have the hots for someone.
For example, if you hear the word 'Bob' while browsing the booklets to see what you can buy onboard, it could indicate that a flight attendant has taken a liking to you.
According to Beddall, it stands for 'best on board' - so stewards and stewardesses use the abbreviation to let their colleagues know that there is an attractive passenger in the midst.
Obviously, this might vary from airline to airline, but it seems that each crew have their own made-up vocabulary to vocalise their attraction for an oblivious traveller.
A flight attendant called LJ previously revealed the typical contents of a 'Cockpit Convo' between cabin crew and how they sneakily flag that they fancy someone on the plane.
She explained that her co-workers dished the dirt on the most attractive travellers by disguising their conversation with another secret code.
During an episode of the Confessions on the Fly podcast in 2019, LJ said she would ask her fellow flight attendants 'what they wanted for dinner tonight'.
She explained: "And you would say 'Italian' or this or that. But we were really talking about the dudes coming on the aircraft.
"So we would have a code of like, 'No, I'm not really hungry for that' or when somebody hot was coming on I'd be like, 'Oh yeah I'll definitely go out for that tonight'.
"When somebody came on who was really really cute, I was like, 'Oh yeah I definitely want whatever it was - Italian - for the night'."
So if you ever hear a weird discussion about a bloke called Bob or regarding what the crew are going to have for tea that evening, the chances are they might be interested in swapping digits with you.
Olivia Burke