Get into a lather Definition 1 of 2Pro Tip 1/3Emotional Intensity Used when emotions are heightened, showing strong concern or nervousness. He always gets into a lather when his favorite team is playing. Pro Tip 2/3Informal Expression This phrase is informal and best used in casual conversation, not in formal writing. I told him not to get into a lather about missing the bus. Pro Tip 3/3Avoid Overreacting It can imply someone may be overreacting more than the situation warrants. You're getting into a lather for nothing; it's just a small mistake.