giggle-gurgle
Fizzy carbonated ("sparkling") water. So named because it gurgles on its way down yer throat, and ya giggle when it tickles yer tonsils.
Plain water or fruit juice is all well and good, but I love giggle-gurgle, especially on a hot day --- nuthin' like that bubbly "bite" to soothe your dry palate and "deeply" quench your thirst.