you've got another thing coming
have another thing coming
To have wrong or unreasonable expectations; to have to change or rethink one's plan or idea. Typically preceded by "If (someone) thinks…." This is a common variant of the original phrase "you've got another think coming." If you think you can walk in here and just demand a raise, you've got another thing coming. If he thinks he can hit it big without paying his dues, he's got another thing coming.
you've got another thing coming
Your expectations are wrong and unreasonable; you better think again. Almost always preceded by "If you think (something)." This is a common variant of the original phrase "you've got another think coming." If you think you can walk in here and just demand a raise, you've got another thing coming. If he thinks he can hit it big without paying his dues, he's got another thing coming.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.