swish
verb (used without object)
to move with or make a sibilant sound, as a slender rod cutting sharply through the air or as small waves washing on the shore.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In his utter well-being from her warming food, Mosher drank deeply and, if it must be admitted, swishingly, through his mustache, inhaling copiously the draughts of Sara's coffee.
From The Vertical City by Fannie Hurst