lemonade

noun3

1. •
   (US, Canada) A flavored beverage consisting of water, lemon, and sweetener, sometimes ice, served mainly as a refreshment. (In the UK and Ireland, generally specified as still, cloudy, or traditional lemonade.)

   • Mrs. Murphy, who had […] stopped for a few minutes, at Mrs. Loring's invitation, to rest and enjoy the cool glass of lemonade that was very refreshing after her long walk. — 1910
2. •
   (UK, Australia) A clear, usually carbonated, beverage made from lemon or artificial lemon flavouring, water, and sugar.
3. •
   (slang) Recreational drugs of poor or weak quality, especially heroin.

   • In fact, a recent report from Denver shows it [street heroin] was about 1 to 2 percent and the addicts that are receiving this in many cases refer to it as lemonade, because it is so weak. — 1965