DCHP-1 Online
jam crew Lumbering 
a gang of loggers trained and equipped to deal with jams (def. 2).
See also: jam ((n.)) (def. 2)
- 1963 Already the jam crews have established their camps at strategic places along the bank, and they too await the logs with peevies and cant hooks.
- 1963 Already the jam crews have established their camps at strategic places along the bank, and they too await the logs with peevies and cant hooks.