wakka wakka
What you say to fill an weird, unsettling moment, in hopes of distracting a person of what is actually going on.
Example:
Phil (obviously distraught): My wife is sleeping with the mailman, my daughter is hooked on PCP and having sex with everyone in the neighborhood and I just found out my mother has cancer!
Bill: Wakka wakka!
...
Phil: Wakka wak-? What was I saying again.
Phil (obviously distraught): My wife is sleeping with the mailman, my daughter is hooked on PCP and having sex with everyone in the neighborhood and I just found out my mother has cancer!
Bill: Wakka wakka!
...
Phil: Wakka wak-? What was I saying again.