how can finish this sentence?

Other students pick up their implicitly ear splitting phone calls and start chatting away like a cynical group of cackling fowl.

Sounds like a creative writing class basically your supposed to compare the chattering voices to something the reader would be able to visualize. The phone calls are loud and proobobly obnoxious. What is loud and obnoxious.

Something like and start chatting away like

-an Italian family at olive garden

Or maybe go with

And start chatting away like

- it was their last moment on earth

Other students pick up their loud phone calls and start chatting away like ....

"loud" may be replaced by "noisy".

I chose a metaphor to finish this sentence. It is a comparison of unlike feelings, things, or phrases

Other students pick up their loud phone calls and start chatting away like cow's milk spritzing into a pail being milked by a champion milk maid. Good luck.

Other students pick up their- deafening- phone calls and start chatting away like crazy during class.

I really don't know but that's the best i got

Other students pick up their noisy phone calls and start chatting away like they'll never be able to again. Hope this helps!!!

not positive what you're trying to say, but I'll give it a try...

Other students talk loudly on their phones as if they're all alone in the room and no one can hear them.

Other students' phones ring loudly. They answer and then start chatting away as if the person right in front of them were no longer there.

I guess instead of loudly you could put obviously, ostentatiously, obnoxiously, annoyingly, with a piercing ring tone, with an obnoxious melody, with an ear-shattering tone, etc.

Other students pick up their blaring cell phones and start chatting away like there was no one else in the room listening to what was being said.

Other students pick up their shrill phone calls and start chatting away like birds at sunrise.

Other students pick up their boisterous phones and start chatting away like blacks at the movies