The phrase "put up the dough" is commonly used to refer to putting up money or investing in a particular venture. However, there are several synonyms that can be used instead of this phrase. For instance, the phrase "shell out" can be used to convey the same meaning as "put up the dough." Another synonym is "ante up," which means to contribute or invest money in something. "Fork over" is another synonym that can be used in place of "put up the dough." Overall, there are several phrases that can be used to replace "put up the dough" and convey the same message.