Blat Share definition Flag An annoying Jew, mostly used for males. Can be also used for verbally harassing someone. Example 1: Wow this guy is such an annoying Blat. Example 2: Hey you are such a Blat. Example 3: Not even GWs Blat can be compaired with a blat like you. Blat by Last of the Masters November 2, 2007 0 0 Get merch