About time: Nearly time, high time. "It's about time you bought a new car!" Absence makes the heart grow fonder: Proverb that means that our feeling for those we love increases when we are apart from them. (To) act high and mighty: To act proudly and arrogantly. Actions speak louder than words: Proverb meaning that's it's better to do something about a problem than to talk about it. (To) act one..