This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 耝 is uncertain. It combines 耒 (a plow or farming tool) with 且, but the role of 且 is unclear.
The left side 耒 suggests a farming tool, and the right side 且 looks like a shelf or a stack. Picture a plow leaning against a shelf, but its exact meaning is unclear.
For ショ, imagine a farmer showing (ショ) a plow to a friend, but the meaning is uncertain: show -> ショ.