Attack of the 12-year-olds

a phrase used to specifically describe when you are suddenly surrounded by foul-mouthed, pre-pubescent children who probably are between 6th and 9th grade. Often have squeaky, non-threatening voices and colorful streams of language.

"You're f***ing gonna pay, you f***ing little c***!"

*sarcastic tone* "Oh no! Its attack of the 12-year-olds!"