What's shown
The video frame shows a young man in a beanie and a plaid shirt. He stands against a dark background, his index finger raised, with an expression of serious conviction on his face, like a host explaining something important. Above his head, large letters read "+100500," with "100" in white and "500" in red.
This frame is instantly recognizable: it combines a staged video format with a caption that became a sign in itself. It's the caption, not the person in the shot, that turned into the meme. The image functions as a visual frame for an expression that can be written even without the picture.
Origin
The exact origin of the expression "stopitsot" (and its variants "stopyatsot," "stopitsot million") has not been established. Several versions exist. According to one, it was first heard on the TV show "OSP-studio," where the character Sivokho uttered the phrase "stopitsot million." According to another, it was introduced by Alexei Kortnev in a video about a boy who "defeated five hundred and one enemies." Both versions remain unverified, so the exact authorship should be considered unestablished.
The name of Maxim Golopolosov's show "+100500" tied the expression to a specific name and made the plus-sign spelling recognizable. The exact release dates and the channel are not confirmed, but by the early 2010s the format had become widespread. In parallel, a Belarusian telecom operator used the expression: in November 2010 it launched a rate plan called "Stopitsot" and a promotional campaign called "+Stopitsot." This shows that the phrase already existed as a conversational hyperbole before it took hold online.
How it's used
The most common use of this spelling is in comments. Instead of the usual "+1" or "agreed," users wrote "+100500" to express enthusiasm and full approval. The plus sign read as support, while the huge number turned a simple agreement into a hyperbolic compliment. Sometimes the spelling was used jokingly, for example to denote an endless string of something, or to underline the absurdity of a situation.
In internet folklore, the spelling also became fixed as a reference to TV culture and to running jokes about "stopitsot" variations of things. It can be found in picture captions, parody headlines, and discussions where someone needs to stress that there's a huge amount of something.
Why it works
The meme relies on the contrast between a formal sign and exaggeration. A plus usually means "add" or "support," and the number one hundred thousand five hundred looks like a precise count, even though it has no exact meaning at all. It's this deliberate precision that makes the spelling funny: it pretends to be math while remaining a pure exclamation.
It also matters that the expression is easy to reproduce. You don't need to know the show, the history, or the picture: it's enough to write a plus sign and a big number. That's why "+100500" outlived its original context and became a universal way of saying "a huge amount" or "I completely agree."