crawldadEtymologyVariant of crawdad, apparently influenced by crawl.crawldad means the crayfish. Lexicurio rates it Sui generis — a strength score of 88 out of 100.nounThe crayfish.““Anybody here every pour concrete?” I asked the group. “I'm not the concrete pourer or the concrete pourer's son ...” came back the cheerful chorus of replies as Quentin, staggering a little, wandered up from the creek to join us, complaining that a crawl-dad had bitten him.”