[mass noun]the action of moving, falling, or striking something with a dull, heavy sound 砰的落下;发出的嘭声 he heard the hollow thudding of hooves. 他听到家畜胃气胀的沉闷响声。
adjective
[attrib.]used to emphasize the clumsiness or awkwardness of something, especially a remark (尤指说话)拙劣的,差劲的 great thudding conversation-stoppers. 最拙劣的打断谈话者。