The phrase "tell a thing or two" is often used to express the act of admonishing or scolding someone. Antonyms for this phrase could include "praise," "commend," or "compliment," which all denote positive feedback or approval. Alternatively, "ignore," "disregard," or "neglect" could be antonyms, as they imply a lack of attention or concern. Another antonym could be "forgive," suggesting a willingness to overlook or excuse a transgression. Whatever the antonym, each word would represent a different way of responding to the situation, with some advocating for forgiveness or praise, while others suggest indifference or even rebuke.