Silence Boomer

Since both Spring and Sammy are slightly older than Mapleshade and Bill and Sans, they always use "Ok Boomer" against them (Cuz they is dumbasses)

For example:

Sammy storms in after being told, yet again, that her music "isn't feminine enough for the composer's gender".

"Stupid producers, stupid misogynist bullshit-" Bill interrupts her rant with

"Everything okay?"

"I hate men!" she rages "Setting up bullshit standards for women to follow-"

Bill waits until she finished, then jokingly whispers

"Ok Boomer"

And she just goes ballistic. In the end, she and all her friends are forced to buy a new house because she tore the old one apart. Piece by piece. By hand. In one hour. And it's a big house, too.

Ah, Sammy. What will we ever do about you?