Definition
To be bigmouthed means tending to talk too much and reveal secrets or private information; being indiscreet or boastful. A bigmouthed person can't keep a secret and often says things they shouldn't. It implies a lack of discretion and a tendency to gossip or brag. Think of someone who constantly spills the tea ββthat's being bigmouthed. It's about not knowing when to keep quiet. Being bigmouthed can damage relationships and erode trust. Control your tongue; don't be bigmouthed!