Jako- pronounced: YOK (like the beginning of octogon)-OH meaning like. The way you used to or still do get in trouble by your teachers for saying like to much. Like... what? ; I was like... ; I guess like... ; etc..
I was talking to a boy (17 years old) and he said that he was getting in trouble in his English class for saying like too much and I told him I suffered from this same problem when I was in school. He then proceeded to tell me that he gets in trouble from his Czech teacher for saying jako too much. Funny how we have so many little things in common.