be all fingers and thumbs
US /bi ɔl ˈfɪŋɡərz ænd θʌmz/
UK /bi ɔl ˈfɪŋɡərz ænd θʌmz/
1.
to be clumsy or awkward with your hands, especially when trying to do something that requires fine motor skills
:
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I'm usually good with crafts, but today I'm all fingers and thumbs.
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He was so nervous that he was all fingers and thumbs when trying to tie his shoelaces.