To respond to a piece of good news with animated, speechless, exuberant excitement. Named after musician Mike Mangini, who was rather pleased to be selected as Dream Theater's new drummer.
"When Edna found out she was going to be a mother, she manginied so hard and for so long that she almost gave herself a hernia.
The act in which a girl possessing a significant amount of swag (female version a ladies' man), successfully entices a man or men. Note: She does not sleep with all her conquests.
Nancy: "Yo, there was this hot biddy at the party, mangeing it up."