"chatterbox" in the noun sense
1. stream orchid, chatterbox, giant helleborine, Epipactis gigantea
orchid growing along streams or ponds of western North America having leafy stems and 1 greenish-brown and pinkish flower in the axil of each upper leaf
2. chatterer, babbler, prater, chatterbox, magpie, spouter
an obnoxious and foolish and loquacious talker
Source: WordNet® (An amazing lexical database of English)
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