The 'Just Let It Go Bruh' Backpack meme typically depicts a character lugging around an absurdly oversized or heavy backpack, symbolizing the immense weight of emotional baggage, past grudges, or unnecessary responsibilities. It gained traction as a relatable way to visualize the 'sunk cost fallacy' or the refusal to move on from old situations that clearly no longer serve a person. The humor comes from the stark contrast between the friend's casual advice to 'let it go' and the physical absurdity of the burden being carried. Users often customize the backpack with text representing specific anxieties, old internet dramas, or personal quirks that they refuse to abandon despite the obvious strain.