pļāpa

Etymology
From the stem of (q.v.), made into an ambigenous (masculine and/or feminine) fourth declension noun.

Noun

 * 1) chatty person, chatterbox

Usage notes
The term is ambigenous. It is masculine when it refers to males and feminine when it refers to females. It is, however, always declined as a feminine noun, with the exception of its dative singular form, which is when it refers to a male and  when it refers to a female.