Sweat out is a common phrasal verb used to describe physical activity that causes a person to sweat and release toxins. There are several other synonyms for this phrase, including perspire, exude moisture, drip, seep, and transpire. Additionally, there are several idiomatic expressions that convey the same meaning as sweat out, such as work up a sweat, break a sweat, and sweat like a pig. These phrases can be used in a wide range of situations, from exercising to hot weather to nervousness. Regardless of the phrase used, all convey the idea of the body actively releasing moisture through sweat.