Meaning of “dry up” - Learner’s Dictionary

dry up

phrasal verb with dry uk us /draɪ/ verb [ I, T ]
END

If a supply of something dries up, it ends:

The work dried up and he went out of business.
WATER

If a river or lake dries up, the water in it disappears.

(Definition of “dry up” from the Cambridge Learner’s Dictionary © Cambridge University Press)