Plonk 

1. Cheap wine

2. The sound your poo makes when it hits water

I wouldnt mind a bottle of plonk...

*squeeze* plonk!

Plonk by Kent Paul December 7, 2006

Plonk 

Plonks are racist members of the Shoreline, WA community who commit hate crimes, are glued to Fox News, and who refuse to acknowledge their hateful and outdated opinions. Plonks and Karens are closely related.

Man, did you see what Karen did the other day? She's such a plonk.

Plonk by shorelineresident July 22, 2020

Plonk 

An expression that connotes a deep sexual desire for the addressee. Mostly included in the vocabulary of crackwhores, camilles, and other strange women. A sign to avoid the speaker at all costs

her "PLONK"

him "haha what's that..."

her "an........ onomatopoeia?"

him "BITCH YOU ARE OUT OF YOUR MIND DON'T CALL ME AGAIN."

Plonk by msniceguy March 6, 2011

PLONK 

Person of Little Or NO Knowledge

Especially relating to women in traditional male roles such as officers

The new cop is a right PLONK

PLONK by phyllis-i like milk-jones January 28, 2021

Plonk 

the sound Cho produces in her wild habitat to attract Led.

Cho: PLONK!
Led: TARGET ACQUIRED, STALKING MODE ON.

Plonk by InterestedGuy March 15, 2023

Plonk 

Staying in bed for an extended or exaggerated amount of time; sleeping, watching movies, or cuddling with a partner, or a group.

I feel so lazy, I plonked for 5 hours before deciding to do my laundry.

Plonk by Jack_Mier May 15, 2014

Plonk 

When a person attempts to insert a flaccid penis during sex.

"That guy was terrible! He was too drunk and tried to plonk me"

Plonk by Butherface May 30, 2016