There are several antonyms for the phrase "bottom dollars", which refers to the last or smallest amount of money someone has. Some common antonyms include: "top dollars", which refers to the highest or most valuable amount of money; "bounty", which means a generous or plentiful sum of money; and "fortune", which refers to a large amount of wealth or money. Other antonyms could include "pennies", "pittance", "chump change", or "scraps". Depending on the context in which the phrase is used, there could be many different antonyms applicable, all expressing different degrees of wealth, abundance, or poverty.