the act of wriggling or otherwise moving while underneath, covered, or wrapped in one or more blankets, while not actually trying to fall asleep
My brother mlurbs around the house all day on weekends.
I totally skipped class to mlurb in my room yesterday.
Mlurbing around is so fun!
God you're such a mlurber.
A humorous alteration of the idiom "heavens to betsy." Popularized by the '60s cartoon character Snagglepuss, who was a regular on the Yogi BearShow. "Murgatroid" is sometimes spelled "murgatroyd" or "mergatroid."