← BackshareGuesschockablock/ˈtʃɑkəˌblɑk/adjectiveCompletely filled or crowded with people or things.The parking lot was chockablock with cars during the festival.Her bookshelf is chockablock with novels and reference books.The subway car was chockablock with commuters at rush hour.SynonymscrowdedjammedpackedAntonymsempty