Meaning: Not with it (example)
Rewrite 1: rowing short an oar
Rewrite 2: steering with a rudder at both ends
Rewrite 3: one boat short an oar
Rewrite 4: in a canoe with no paddles
Rewrite 5: driving a car with three flats
Comments: This is less about boats and oars than it is about being unbalanced, but I couldn't resist some of these stranger variations on the original theme.
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