Twanger is an informal term that describes a vibrating sound, particularly when associated with stringed instruments. There are several alternative options to use instead of twanger, including the terms plucker, picker, strummer, thumper, and thwacker. Plucker denotes someone who plucks the strings of a musical instrument, while picker describes a person who picks the strings of a guitar. Strummer and thumper relate to the percussive manner of playing a guitar or similar instrument. Thwacker has a more robust connotation, indicating a person who strikes the strings of a musical instrument with force and energy. All these alternative words provide adequate synonyms for twanger, and one can choose the most apt depending on the context of their discussion.