Flambunctiousness is the act of entering a social gathering in an over the top, excitable manner. Your aim is for people to notice you so that your / their approach will be made easier later on in the evening. Very popular among the gay community as a manner of greeting.
"My goodness did you see Henry last night, His entrance was so flambunctious.
by Joel Beath February 19, 2008
Being overly excited while playing scrabble causing people to wonder about your sexuality.
"Shawn was so flambunctious last night, Should we worry about him?
by Nicademus February 10, 2010
Flamboyantly and rambunctiously gay.
Stop acting so flambunctious.
by Tory... May 15, 2005