Dream of giving lemonade indicates good friendly ties. Dream of receiving lemonade indicates someone will make you a favor.
Dream dictionary: Lemonade dream meanings
If you drink lemonade in a dream, you will concur with others in signifying some entertainment as a niggardly device to raise funds for the personal enjoyment of others at your expense.
To be in a place where it is sold means trouble and disappointment to a near friend. Drink it, bitterness of spirit and the failure at some task you were working on.