Urban Dictionary: muffin top is when a woman wears a pair of tight jeans that makes her flab spill over the waistband, just like the top of a muffin sits over the edge of the paper case. (this only made me want to eat a muffin...its been about 2 years and I still have the top, so I mine as well eat the muffin!)
Myth #137: “Sleep tight” referred to tightening the ropes on a bed.
Urban legend has it that “sleep tight” referred to tightening up the ropes on the old-fashioned bed, but this is a myth perpetuated by historic house guides and visitors alike. The meaning of “tight” was a little different in the 18th century. According to the Oxford English Dictionary, one of its meanings was “soundly.” Another is “securely.” So “sleep tight” really just meant “Sleep well.”