A fork of Rural Dictionary
being all around crazy and or stupid (either in a god or bad way)
Good way: "Yo man, you were straight rumblin at that party last night!!" Bad way: "Dude. Chill out. Quit rumblin. you're pissing me off."
When an anus disperses a gaseous cloud. Described as a rumblins!
When she bent over I sensed the rumblins of a storm.