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.
(..) 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