look up any word, like trill:
 
1.
Fat and Clumsy
Someone who is incapable of normal sensibility. My co-worker is Flumsy
by T3RMY April 30, 2013
 
2.
It's a flailing clumsy person.
Me-"She was throwing her arms about wildly while making turkey sounds as she tripped over her own feet and fell down the stairs"
Friend-"damn what a flumsy idiot!!"
by ST-1 July 19, 2011