Grammar says that weasel words are words or phrases which are intentionally vague. Arguably, they hide important information like who exactly made a certain argument or just what a statistic means. Experts[who?] have proven there is considerably less substance in weasel words. Most people[who?] agree that weasel words are bad. Studies[who?] show weasel words are 33% more likely to be used by politicians[who?] or in advertisements.