To snore loudly, irritatingly, or raucously in a manner that disturbs others, and causes them to sleep on the couch or sit up reading a book all night because they cannot sleep with all that racket going on.
"I'm sorry I was snufflepuffing last night, I'll wait for you to fall asleep first tonight, promise"
"I'd rather sleep in my car, I don't want to snufflepuff all night and wake people"