Drinking the Kool-Aid' has become a common phrase in American vernacular, however, the expression has a sinister origin with roots in a violent cult and mass murder. The phrase originated from ...

Kool-aid to the rescue. Just mix unsweetened lemonade Kool-Aid with hot water. Scrub and the rust stain should come right out. Summer’s almost here, so you may be spending a lot of time in a pool.