Well, it appears that my prediction that the next poster would feature a farting Hulk and a tagline saying something about the "green movement" was wrong. Instead, Disaster Movie has chosen the route of referencing either a year-and-a-half old international poster for Knocked Up or simply the biological act of sperm fertilizing an egg--your choice. It's funny because "getting off" can refer both to physically removing oneself from Earth or to ejaculating. I guess "cumming soon" and "LOL comets looks like sperms!" were deemed too obvious.