To make a ditch
furrow, trench, drain; see dig 1.
To run into a ditch
skid, overturn, derail; see crash 1, 4, wreck 1.
*To get rid of
desert, forsake, leave, jettison; see abandon 2, discard.
Another word for ditch
To let go or get rid of as being useless or defective, for example: discard, dispose of, dump, junk, scrap1, throw away, throw out. (Informal) chuck, jettison, shuck (off). See keep