The narrator said:

A cola-based blend drink made by mixing various drinks in as-you-see-fit proportions.

Ah. Known in these parts, when prepared using one of those multi-outlet soda fountain things at e.g. Burger King, as a "suicide".

zgryphon said:

Ah. Known in these parts, when prepared using one of those multi-outlet soda fountain things at e.g. Burger King, as a "suicide".

Me and my merry gang of misfits called it 'funny drink', because of the strange sensation and/or taste that'll make em laughed their sides off

TunaMayo said:

Me and my merry gang of misfits called it 'funny drink', because of the strange sensation and/or taste that'll make em laughed their sides off

Trivia: Back in the '90s, Coca-Cola actually sold such a thing for a little while, under the name "OK Soda". They even ran a bizarre ad campaign for it with the tagline, "Things are going to be OK."

Unlike Haruna, OK Soda was not OK. Bleah.