The celebrity world is full of them.
Many credit the union of Ben Affleck and Jennifer Garner giving us 'Beniffer' as the origin of the celebrity couple nickname but it goes back further to Lucille Ball and Desi Arnaz who named their studio, 'Desilu'.
'Brangelina' took the phenomenon to a whole new stratosphere and in more recent times the world has become unhealthily obsessed by the goings on of 'Kimye'.
In rugby league land we have been blessed with the coupling of Joey Leilua and Jordan Rapana at the Canberra Raiders which in turn has given us 'Leipana'.
They are so intertwined on the Raiders' right edge now that it is almost impossible to recall a time when they in fact played for other teams and alongside other players.
If Joey goes searching for a mid-field carry Jordan invariably follows in wait of an almost inevitable offload and when Jordan streaks down the right touchline it is more often than not Joey haring through on his inside waiting in case a further pass is required.
They are a phenomenon in their own right but they are by no means the only 'power couple' currently working wonders at the 16 NRL clubs which led me to one admittedly frivolous conclusion: every club's power couple deserves their own nickname.
And here they are.
'Blaiday' (Broncos): Once tagged the 'Fro Bros' (by yours truly no less), Adam Blair and Sam Thaiday need a new moniker now that Sam's trimmed the locks.
'Leipana' (Raiders): The original and still the best. Special mention for the back-row duo of 'Whitlii'.
'Graman' (Bulldogs): If this catches on – and given their similar looks – Aiden Tolman and James Graham are in danger of actually morphing from a power couple into the one person.
'Lewilen' (Sharks): Sharks veterans Paul Gallen and Luke Lewis are so close that they have even discussed taking their families to the south coast in retirement and buying adjoining blocks of land so they can catch up every day and talk about the 'good old days'.
'Kashley' (Titans): Titans fans are sure hoping that the combination of Ashley Taylor and Kane Elgey is a long and fruitful one on the Gold Coast.
'Tuate' (Sea Eagls): Pronounced too-ah-tee, the Manly wingers are enjoying a resurgence of form in 2017 and make a cute couple.
'Cronth' (Storm): Two of the most winningest players in the game's history are polar opposites but complement each other so well. Can't believe they are on the verge of breaking up.
'Buhrnett' (Knights): Sometimes a power couple just has to make sense, like the Knights two hard-working back-rowers in Jamie Buhrer and Mitch Barnett.
'Thurgan' (Cowboys): Sadly the partnership between Johnathan Thurston and Michael Morgan looks like coming to an end in the next 18 months but they'll always have 2015. And maybe 2017, who knows.
'Jendra' (Eels): Speed and power, Michael Jennings and Semi Radradra are a match made in rugby league heaven.
'Macleary' (Panthers): No, not a Scottish seaside town but two of the best young halves in the game in perfect Penrith pair Te Maire Martin and Nathan Cleary.
'Reynker' (Rabbitohs): It's proof that opposites attract in the South Sydney halves with the calculating execution of Adam Reynolds complemented perfectly by the instinctive footballing instincts of Cody Walker.
'Widingale' (Dragons): Yes, it's a partnership that has only really come to light in the past week but after dubbing Gareth Widdop and Jason Nightingale 'Widingale' in the Round 5 Team of the Week I just had to follow through on it.
'Fergushell' (Roosters): As two of the most powerful ball runners in the NRL Blake Ferguson and Latrell Mitchell are the definition of a power couple.
'Maumata' (Warriors): A giant winger in Ken Maumalolo and diminutive centre in Solomone Kata; can you imagine how funny their photo will look at the Warriors' presentation night at the end of the season?
'Brooses' (Wests Tigers): Will the pairing of Mitchell Moses and Luke Brooks reach the heights we expect of two shining stars or be ripped apart before they can reach their potential? We might be about to find out.