crawdad/ˈkɹɔˌdæd/crawdad means synonym of crayfish. Lexicurio rates it Rare gem — a strength score of 81 out of 100.crawdad is pronounced /ˈkɹɔˌdæd/.EtymologyAlteration of US and British dialectal crawdab (“crayfish”).nounSynonym of crayfish.