The act of sneaking into the orca inclosure at sea world and beating your meat while also pleasuring the orcas until both you and the orca sporadically orgasm at the same time causing the Rapture setting of the plot for This is The End by Seth Rogen.
The Dirty Carlsen is the act of having sexual intercourse with someone (a man) in the "Dagli'Brugsen" in Gevninge, and afterwards running out on the road nude and thereafter stopping a car on the road, getting the driver to pull down the window and then you cum in their front rear window whilst saying "I have crippeling depression"
While being held down by a dominant man, he fingers her anus and vagina simultaneously until she ejaculates (if she pees it is not a Dirty Carlotta but has another name), then while still dripping, sits on his face backward so that his nose is in her ass.
He was banging her good and it surprised him when she gushed on his hand and gave him a Dirty Carlotta.