No source work, performer or year is documented for this Mantequilla clip in the information supplied, so its origin cannot be stated with confidence. What is clear from its listing is its function: a short reaction sound built around one recognisable Spanish word, shared for use in brief online edits. Single-word reaction clips circulate in this way because they need no context to be understood, and mantequilla works in that pattern through its direct link to butter and food. Use in that pattern depends on that immediate recognition, rather than on a known scene or quotation.