The distorted audio sound that occurs when one has connectivity or performance issues during live streaming or video recording. It was named after JS Gilbert, a Live Streamer who often had this issue and thus, became known for it. People all over the web now use this term.
"Excuse me, can you please refresh your browser? You're gilberting."
"I tried to stay and listen but he was gilberting so badly, he was hurting my ears."