A word to describe Someone who is not doing something right or is not consistant in what there doing in any situation. ie; swerving a car out of ur lane by accident on the road.
You: Hey, can u hammer this nail for me? Ill hold it in place for you.
Guy: Sure, no problem!
(Misses the nail and hits your hand)
You: Swerven.....Swerve swerver masterswerver