Top definition
1. When you miss hitting the nail with the hammer and end up hitting a finger and leaving a bloody mess.
2. When you seriously injure yourself.
1. "I was hanging a picture the other day, and fumblehammered my thumb. Before this game, I would have just swore. This time I yelled OUENDAAAAN!!! I think it helped more."
2. One day I fumblehammered my nuts on my bike after I jumped over a ramp.
by Siril Frein February 09, 2006
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug