put in a hard day's work
put in a hard day's work
To work for a full day doing something that is physically or mentally exhausting. After putting in a hard day's work, the only thing I want to do is sit back on my sofa and relax. Quit complaining—you've never put in a hard day's work in your life.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.