The act of cumming into your partners anus and having them push it back out into your cupped hand. They then proceed to slurp the semen from your hand like a freshly shucked oyster.
"Sea ottering" is to cuddle and fall asleep with a partner.
This is because sea otters often rest together in 'rafts' and hold paws so that they don't float away from their group, as seen in the popular YouTube video "Otters holding hands" by user cynthiaholmes.
Girl: Sea otters are so cute. Did you know they hold paws when they sleep to keep from floating away from eachother?
Boy: Haha no I never knew that, that's actually pretty cute.
Girl: Isn't it!
Boy: Yeah, and hey, maybe we can 'sea otter' sometime, yeah?
Girl: Okay! I look forward to sea ottering with you. *wink
The act of sitting in random areas and posing like the aquatic mammal. Not as popular as Planking or Owling but stay tuned...all of the kids are doing it.
Truly just a form of one-upmanship in the world of photo taking.