or P.S.T., p.s.t.
Definition for pst (2 of 2)
Origin of psst
Examples from the Web for pst
The two tradesmen immediately made their escape, but a low "Pst!"Original Short Stories, Volume 7 (of 13)|Guy de Maupassant
It did me good to say all that out to a real gentleman, and—pst!The Queen's Scarlet|George Manville Fenn
An' that, Miss Dorothy, is why I was a-wavin' at him an' sayin' "pst" to him.A Proposal Under Difficulties|John Kendrick Bangs
We were just about to walk out from among the trees, when my companion, with a sudden, "Pst!"The Trail of The Badger|Sidford F. Hamp