Whiff

[Sarah]

A sudden expulsion of air from the mouth; a quick puff or
slight gust, as of air or smoke.

[Raeanne Dimick]

In fighting games:

The act of performing a move [that fails] to [connect] with the opponent, whether it be [on hit] or on block.

[Sommer]

originally from the game of [whiffle ball], specifically the sound the [hollow] plastic bat makes when one [swings] hard and misses the ball.
Also, it means to fail badly at a very simple task. This is a big put down.

[Oralee]

To swing and miss in the game of baseball.
Often used to describe a player who [swings] and [misses] by a considerably [margin] and frequently.

[Britney]

A [slang] [word] for [Cocaine]

[Zipporah Schumaker]

An English word used informally with unpleasant, foul smells, often used as a synonym for sniff, scent, odour and aroma.

Etymology: The word became popular in the 16th century with tobacco smoking, probably influenced by [whiffle] [blow in] gusts or [puffs].

[Sarah]

A persons [scent] or odor that [you smell] when they [walk by].