A person or creature that dabs, smears, or applies something messily; also refers to a mud dauber wasp that builds mud nests.
From 'daub' (from Middle Dutch or Low German 'dauben' meaning to coat or smear) plus the agent suffix '-er' (one who does the action).
Mud dauber wasps are architects in miniature—they build intricate mud nests from scratch using their own saliva as a binding agent, and they're so peaceful that they rarely sting even when defending their nests.
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