the.com/tattletale
A snitch in training pants, weaponizing the truth for a teacher's approval.
means Someone, usually a child, who eagerly reports others' misbehavior to an authority figure.
from From 'tattle,' a 1400s word meaning to chatter or babble, doubled with 'tale' for emphasis — the kind of rhyming reduplication kids instinctively love.
Sibling fuelPowers roughly half of all backseat warfare.
Global cousinBritish kids prefer the punchier 'telltale.'
Adult upgradeGrows into 'whistleblower' or 'narc,' depending on motive.