AS: "I'm also going to grab your ankles instead of just flumsying around."

Someone who is incapable of normal sensibility. My co-worker is Flumsy

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!!"

The flumsiness made him bump in to all the tables. And flumsy fall down the stairs.

Wow, i feel so flumsy right now!