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Related to cast up: cast up accounts
1. To throw or toss someone or something ashore. A noun or pronoun can be used between "cast" and "up." The choppy waters cast me up, coughing and spluttering on the beach. A child must have lost a toy boat in the ocean because the waves just cast up its wreckage.
2. To calculate something. The morning after another rather indulgent evening, I decided it was high time for me to cast up my accounts.
cast someone or something up
[for the waves] to bring up and deposit someone or something on the shore. The waves cast the wreckage up, and it was found on the shore. The waves cast up the wreckage of a boat.