smatter

(verb) work with in an amateurish manner. Synonyms: dabble, play around. Examples: "She dabbles in astronomy." "He plays around with investments but he never makes any money."

(verb) to talk foolishly. Synonyms: babble, blather, blether, blither. Examples: "The two women babbled and crooned at the baby."

(verb) speak with spotty or superficial knowledge. Examples: "She smatters russian."