By the morning, there was just a 'wisp' [='bit'] of snow left on the ground.
I met her when she was just 'a wisp of a girl'. [=a thin young girl]
There was a 'wisp' of a smile [=a very slight smile] on her lips.
(..) So... that question I've been holding is what purpose is Rene fulfilling? Time is up I have other clients. Though you may not have detected the wisp of Astrakhan fur snagged on a nail from my left shoulder... You couldn't have failed to notice the overpowering aroma of herring pickled in vodka. (..)2011 Sherlock Holmes: A Game of Shadows
(..) What am I supposed to do now? Just go back to writing? I'm out of the zone now, the whole day's shot! All because of you and that brittle wisp of a woman you made the mistake of making your mother. No. It's not her fault. She's doing the best she can, after all. It's just that... (..)2018 TvShow: BoJack Horseman Title: Free Churro Season: 5 Episode 6
(..) but I'm asking you to help me. Who said I don't like her? I like her. She's the nicest felon you've ever dated. Stop. I just think she's a bit wispy. I thought you'd end up with someone more substantial. Are you talking about her moral character or the size of her breasts? Please. I'm an ass man. (..)2013 TvShow: Orange Is the New Black Title: The Chickening Season: 1 Episode 5