Japanese: 笊, sieve, person who can drink copiously without getting drunk.
Rakshasa: During a game against a japanese player, he made a joke about making a zaru play. I assume this means a move that has obvious holes/defects. Is this a term that is commonly used for bad plays?
Bob Myers: AFAIK, it means crude. You can also say zarugo to refer to an overall crude, amateurish style of play--but in a kind of friendly way.
See Zaru Go.