Psshh

A sound that indicates disbelief

That PepsiMax has zero calories? Psshh.

by bg1974 January 14, 2011

psshh

An expression of disconcern. It generally means that the speaker does not care about what has recently been said or done.

You: Hey.. you just crashed into a tree...

Me: psshh what are you talking about?

by Rown February 7, 2006