The phrase "plain brown wrappers" is often used to refer to unmarked or unbranded packaging, particularly for items that are sold discreetly or illegally. Some synonyms for this phrase include "generic packaging," "unlabeled boxes," "unmarked containers," "anonymous wrapping," "unbranded envelopes," and "innocuous covering." These terms all suggest packaging that is intentionally plain or nondescript, without any identifying marks or logos. "Brown bagging" is another related term, which refers specifically to the practice of carrying alcohol in a paper bag to hide the contents from public view. Whatever the terminology used, these phrases all imply a desire for discretion or anonymity in packaging.