1) A term originating in the shipping industry where a heavy package flow is rammed down a chute into a trailer and it constantly jams. Using wax on the chutes helps reduce the jamming.

2) Intense sexual intercourse where the penis in rammed into a pussy or ass so tight that it gets jammed and stuck. Lubrication can help reduce the jamming.
Manager 1: Wow that trailer is really backed up?
Manager 2: Yea I know I got to ram and jam to get this trailer full before the end of the sort

Guy 1: Did you hook up with that girl last night?
Guy 2: Oh yea she was so tight!
Guy 1: Did you ram n' jam?
by SilverFox87 March 1, 2010
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