Whew

[Sarah]

A sound like a half-formed whistle, expressing astonishment,scorn, or dislike. Whew duck, the European widgeon. [Prov. Eng.]

[Sarah]

Used to express strong emotion, such as relief or amazement.

[Sarah]

The title of a game show hosted by Tom Kennedy which ran on CBS from 1979-1980.

[Sarah]

Candice's, Shane's and Holly's way of expressing a comical sigh of relief after laughter.

[Sarah]

Sarcastic answer to a statement. A sarcastic comment. As in yeah,

[Cami]

When [you’re] [excited].

[Julian]

[Basically]...This [shi] is [just too much] ️

[Merna]

→  phew informal