Something effervescent has bubbles or froth, like a sparkling wine, a bubble bath, or Old Pulteney 12 Year Old Single Malt Scotch Whisky on Rex' Master Level Mooch pallet.
It is rare to have something so light, effervescent and friendly in the taste; when the nose is headed towards something that is complicated and rich.
Adjective; When something causes you to slowly build in confusion to the level of WTF!. Starting first with a simple "What?" or "Huh?" and ending with Rage or WTF.
Man 1 & 2 see Performer 1 sing about his pants to the Final Fantasy IV theme.
Performer 1: "♫In my other pants, there's my wallet. In my other pants. . . ♫"