Definitions for "Table talk"
1) Illegally conveyed information between partners, for example by means of talking, gestures, or facial expressions. 2) Extraneous discussion during play, discouraged because it might convey information or distract a player
Discussing specific cards while the hand is still in play. It is frowned upon (or against the rules) to announce you just folded two jacks. This may affect strategy of those still in, because they now know two jacks are out of play.
conversation during a meal