v.1. To become devoid of liquid or moisture: During the drought, the pond dried up.
2. To cause something to become devoid of liquid or moisture: She dried up the wet table with a towel. He spilled some water on his pants and dried it up with a hair dryer.
3. To become unavailable gradually: The money for the grant dried up because of funding problems.
4. To stop talking suddenly: The suspect realized he was talking to the police without his lawyer and quickly dried up.