Often also used as a sort of signature to a Newcastle fan's rantings.
Newcastle Fan 1: Even though we've played Arsenal, Tottenham, Everton, Fulham and Stoke who are all in europe? Oh, and we've beaten you aswell.
Newcastle Fan 2: LALAS!
Son: lala dad?
Father no, oooohlala, lala just menas your goofy in the head