Simulcast
Back when people watched television with a digital cable box, you might've noticed that two or more channels broadcast the same exact thing. They might not all be in sync though, and the 'carbon copies' are often worse in quality. This is strictly known as simulcasting.
When I was a kid, I used to find it mildly intriguing that channels 26, 232, 234, and 556 all broadcasted the exact same content. Didn't know these were called simulcasts until now.
Simulcast
Japanese Anime that is recorded as broadcast, i.e., nudity and flashing images are censored with mosaics. It is the opposite of "uncut" which is uncensored content made for Western countries.
You're watching simulcast hentai? Go buy a blu-ray disk from the states and see it uncensored!
Simulcast
When one empties their bowels and bladder simultaneously, typically as an ultimate sign of disrespect. Similar to the flaming bag of poo on a doorstep.
“He pissed me off so much, I stared him right in the eye and simulcasted on the sidewalk.”