1. engaing in criminal behavior
See that guy running down the steet? He looks like he's crimin'.
by Carrie W. June 18, 2006
When criminals are out committing crimes, they are out "crimin'" (slang for "criming")
Those cops oughta quit bunchin up...if the criminals notice, they'll be out crimin' for sure!
by larstriplj April 26, 2007