The phrase "picking up the tab" is commonly used to refer to the action of paying for someone else's expenses or bills. In contrast, the antonyms for this phrase include 'leaving the tab,' 'ignoring the tab,' or 'not paying the tab.' Such actions could be considered rude or inconsiderate, leaving the other person responsible for the bill. Other antonyms could include 'splitting the tab,' 'sharing the burden of the tab,' or 'going Dutch.' These phrases suggest a more equitable distribution of financial responsibility, where individuals contribute their fair share towards the expenses. While there are different ways to handle expenses in social settings, showing consideration towards others' financial situations is always appreciated.