White Mustache_英语成人笑话

a man walks into a tee shirt store. there are 3 shirts on display. the first has a picture of richard nixon with a white mustache. below the picture is titled "got milk."
the second tee shirt has a picture of ronald reagan with a white mustache. it is entitled "forgot milk."
the third tee shirt has a picture of monica lewinsky with a white mustache on it. it is entitled "not milk."