To fight; to initiate physical conflict, especially subsequent to escalating tension or antagonism.
To degrade into a fight or physical conflict (in reference to an argument or to a situation of tension or antagonism).
To shape metal using a hammer or other force.
To leave (a restaurant etc.) without paying.
To fold under or round an object.
A tool (originally a bevelled chisel) for making grooves in horseshoes.
The drug MDMA.