"Even a casual conversation between a man and his wife is held up to him at the time of Judgment." again- a casual conversation, referring to idle chatter, a man may talk to his wife and joke about something unclean, he feels like there's nothing to it- she's my wife- I'm simply telling her a dirty joke... but he doesn't understand that even this conversation will be shown to him at the time of judgment meaning- he will be sewed for this, He must keep a clean mouth and it makes no difference whether it's regarding his wife or someone else. 