{PLONK}

the sound shit makes when it breaks the surface of the water
and touches the bottom of the toilet, followed by an up splash of water/urine touching ones ass

guy: *shits*...*{PLONK} sound*
guy: urgh....*shudders as he feels the water touch his ass*

{PLONK} by {PLONK} March 5, 2007

plonk 

from: the on-line hacker Jargon File, version 4.2.3:

plonk excl.,vt. Usenet: possibly influenced by British slang
`plonk' for cheap booze, or `plonker' for someone behaving stupidly
(latter is lit. equivalent to Yiddish `schmuck') The sound a {newbie}
makes as he falls to the bottom of a {kill file}. While it originated
in the {newsgroup} talk.bizarre, this term (usually written "*plonk*")
is now (1994) widespread on Usenet as a form of public ridicule.

St00oid is as st00pid oes. *PLONK*

plonk by HTH January 26, 2003

plonk 

The sound a user makes as it hits the bottom of another user's killfile bin

Some AOL user wrote:
> <snipped pointless drivel>

*PLONK*

plonk by the_nerd December 2, 2003

plonk 

Cheap wine

plonk by daniel king February 16, 2003

plonk 

in Australian slang -

1: wine. usually referring to cheap wine but not neccessarily.

2: to place something down on a surface (even one's bum).

1: do you reckon a couple of bottles of plonk will be enough for dinner?

2: hey, come'n plonk your bum down and watch the movie, darl.

plonk by periwinkle January 13, 2005

plonk 

A word used on message boards as a response to some turd, to let them know you've just put them on ignore.

Tom: I hope everyone had a good day today.

Turd: Duh, it's night here.

Tom: *plonk*

plonk by Tom Joe December 27, 2006

plonk 

rhyming slang for cheap white wine.

bottle of blanc (white) = plonk

bring some plonk.
bring a bottle of plonk.

plonk by cat rose of October 19, 2007