all thumbs
CLUMSY, awkward, maladroit, inept, unskilful, heavy handed, inexpert, butterfingered, cack handed, ham fisted, having two left feet, all fingers and thumbs, klutzy

[TahlilGaran] Dictionary of Contemporary English ▲

all thumbs
awkward in handling things.
Can you thread this needle for me? I'm all thumbs.

[TahlilGaran] English Idioms Dictionary ▲

all thumbs
to be awkward and clumsy, a difficulty in fixing things or working with one's hands
The janitor is all thumbs and he can never fix something without making it worse.

My friend is all thumbs when fixing things around his house.

[TahlilGaran] English Idioms Dictionary ▲

all thumbs
adj., informal Awkward, especially with your hands; clumsy.
Harry tried to fix the chair but he was all thumbs.

[TahlilGaran] English Idioms Dictionary ▲