If someone knows when to shut up, it means that they know when to be quiet.
shut up shut up by !@#$%^&*()_+}{ sucker
=== TICKLE HIM AGAIN!
shut up nobody knows
SHUT UP nobody knows this stupid questions
It means shut your mouth or shut up or silence.
it means to shut your mouth and be quiet
du has mean shut up
shut. cayete la boca=shut your mouth/shut up.
shut up fool your mom knows your answer so go and ask her not me
Loosely...."Shut up stupid". or "Shut up, you're stupid."
A polite way of saying "shut the f*** up".
It is not Spanish, but Italian; the Spanish would be te callas. It translates to: Shut up or shut it or you shut up.