The electronics company claims that LG has damaged its brand value through spiteful advertising, launching a 50 billion won (US$45.2m, £29.78m, AUS$43m) suit.
So how did this heavy, serious legal battle all begin? Samsung posted a YouTube video titled "Inconvenient truth about refrigerator capacity" which compared the size of its refrigerators with those made by LG.
LG Electronics, displeased at accusations about how much veg its fridges could store, then hit back by filing a lawsuit against Samsung and running its own online advertisements in a response. Now Samsung is throwing a strop and wants revenge.
An inconvenient truth
This certainly isn't the first scrap between the two Korean companies, which have been embroiled in several legal disputes over various things, including OLED technology. The launch of Samsung's Galaxy S4 has also got LG's attention for containing the same eye-tracking technology.
But this latest argument is arguably the most ridiculous, given that it all started over a video of Samsung putting some cans into a fridge.
Nonetheless, Samsung claims that LG's response campaign "tarnished its corporate image" by misrepresenting the facts. So there you go.
Oh guys, we really wish you could just get along.
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Hugh Langley is the ex-News Editor of TechRadar. He had written for many magazines and websites including Business Insider, The Telegraph, IGN, Gizmodo, Entrepreneur Magazine, WIRED (UK), TrustedReviews, Business Insider Australia, Business Insider India, Business Insider Singapore, Wareable, The Ambient and more.
Hugh is now a correspondent at Business Insider covering Google and Alphabet, and has the unfortunate distinction of accidentally linking the TechRadar homepage to a rival publication.