This is the 14839th most frequent German word.
quatschen
To chat or talk informally.
Usage of 'quatschen' here refers to informal chatting, typically among friends.
Wir haben gestern Abend lange gequatscht.
We chatted for a long time last evening.
Here, 'quatschen' implies talking unnecessarily or aimlessly.
Hör auf zu quatschen und mach deine Arbeit.
Stop babbling and do your work.
This use of 'quatschen' pertains to casual conversation that might be too loud.