plonk vs plump down

plonk

• To sit down heavily and without ceremony. 

• To set or toss (something) down carelessly. 

• To automatically ignore a particular poster. 

• Cheap or inferior everyday wine. 

• AC Plonk 

• A female police constable. 

• The sound of something solid landing. 

• Precisely and forcefully. 

• The sound made by something solid landing. 

• The supposed sound of adding a user to one's killfile. 

plump down

• To sit down heavily in a seat.