andeffective
A mealy-mouthed "feature" of some hyped product, spoken after cheerful and virtuous-sounding words like "safe" or cheap", and intended to not actually lie but sometimes to trick someone into thinking you mean one thing when you may actually mean something entirely the opposite.
When a radio or TV advertiser says that some medicine or other edible substance is "tasty andeffective", I never know if he is indeed saying, "and effective", or if he's really saying, "and DEfective"!