noun, Chiefly British.
inferior or cheap wine.
(often foll by down) to drop or be dropped, esp heavily or suddenly: he plonked the money on the table
the act or sound of plonking
an exclamation imitative of this sound
(Brit & Austral, NZ, informal) alcoholic drink, usually wine, esp of inferior quality
1874, imitative. From 1903 as a noun. Related: Plonked; plonking.
[wine sense fr French vin blanc, ”white wine”; second sense perhaps fr the dull sound plonk]
(Possibly influenced by British slang “plonk” for cheap booze, or “plonker” for someone behaving stupidly; usually written “*plonk*”) The sound a newbie makes as he falls to the bottom of a kill file. While this term originated in the Usenet newsgroup news:talk.bizarre, by 1994 it was widespread on Usenet and mailing lists as a form of public ridicule.
Another theory is that it is an acronym for “Person with Little Or No Knowledge”.
adjective Drunk (1943+)
/ˈplɒŋkə/ noun 1. (slang) a stupid person
/ˈplɒŋkɪŋ/ adjective 1. foolish, clumsy, or inept: his plonking response to the princess’s death
/ˈplɒŋkəʊ/ noun (pl) plonkos 1. (Austral, slang) an alcoholic, esp one who drinks wine