1. [19C+] (also gabs) idle chatter.
2. [19C+] talk, conversation, esp. charming and persuasive.
3. [late 19C] a (foreign) language.
4. [1920s] (US) one who talks too freely, one who cannot keep a secret.
5. [1990s+] as the gabs, a propensity to talk too much.
 irrepressibly and noisly loquacious.
[early 19C+] to stop talking, esp. as imper.