The phrase is everyday Swedish for asking what someone is doing, usually with an annoyed or incredulous edge depending on context. As a short voice clip it has circulated on user soundboards detached from any clear original source, so its life online is mostly as a reusable reaction rather than a quote tied to one scene. Swedish speakers recognise the wording immediately, while others use it for its tone alone. It remains handy for short form edits where a three second scolding sums up confusion faster than an explanation.