1 definition by bobcatterington
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.
by bobcatterington May 21, 2011