emjars Share definition Flag A kick ass blogger; NOT related to jamjars. She's kewler, and she likes apple juice. Me: asdgjkl I love Emjars! Other person: OH, You mean Jamjar-- Me: NO. I MEAN EMJARS. EM. JARS. emjars by CODYderdsvgofuckyourselfrtr September 11, 2011 Get the emjars mug.