Verb: To splumf. Means to relax the body entirely, going from a standing position on to a very soft piece of furniture, such as an extremely comfortable chair or bed (usually after a long day)
Ollie: Aaaaaahhhhhrrrrrhh (yawn)
Lou: What's up fella?
Ollie: Been a looong day
Lou: Let's splumf
Ollie: Great idea. I'm glad there's a word to describe that action
Lou: Hells yes