I don't want to overwhelm you with work. He did not want to overwhelm the students with homework during homecoming.
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The rising tide threatened to overwhelm the flood defences.
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To overwhelm means to cause someone to be overcome with emotion,
so that they cannot control themselves. To overwhelm with humor
would be to us humor in order to cause someone to laugh
uncontrollably. The implication here is that the other person is
hostile, and you overwhelm them with your sense of humor.