There's an anime from (i think) ~2010 where the final line of the prechorus was something like "pa pa parasoruuuu" pitch going higher with each note up until parasoru which had a HLHL pattern
I saw it i think when i was a wee lad so my memory is extremely shaky on it, it was a woman singing and i think immediately after there was something like "hai-hai- kimo wo (something)"
I vividly remember that line because of how weird it seemed at the time, anyone know what it might be?
I've been searching for it and have gotten nothing. I found something else called "parasol chocolate" with a male singer that certainly wasn't it. Given the time frame, pretty sure it was on (or from) netflix.