l+c - In a webinar, L/C means you're yelling so loud that even the

In a webinar, L/C means you're yelling so loud that even the instructor can hear you, and it's usually because you're dumb.

I L/C'd during the webinar because I was drunk.

I L/C'd during the webinar because I was tired and mad.

I L/C'd during the webinar because I thought it was a karaoke night.