The phrase "picked up the check" refers to a person paying for their own or someone else's meal in a restaurant or bar. Antonyms for this phrase could include "ignored the bill," "passed on paying," "declined to cover expenses," or "left the check unpaid." Alternatively, synonyms for "picked up the check" could include "treated," "covered," "paid for," or "footed the bill." In social situations, deciding who pays can be awkward, and this phrase often signifies a gesture of generosity and goodwill. However, failing to pay can lead to embarrassment and strained relationships, so it's important to navigate these situations with care.