something like that, something like this, such a thing, that kind/sort of thing, stuff like that (often translated as simply "that" or "this", meaning not only the specific thing in question but also any instance of that thing resembling it)

after ​что​ used with a pronoun, name or noun to specify the meaning of что as "what's the nature/essence of" and not just a request to identify something (usually not translated)

conversational in the genitive case used to indicate something perceived as deserving attention or special/unusual (even if not perceived as such by the subject)