someone's tongue is hanging out
(one's) tongue is hanging out
One is very thirsty and desperate for a drink. The coach has us running laps until our legs were ready to buckle and our tongues were hanging out.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
someone's tongue is hanging outsomeone is very eager for something, especially a drink.
Farlex Partner Idioms Dictionary © Farlex 2017