could (do something) standing on (one's) head

Is able to do something with very little or no difficulty, or complete or accomplish something in a relaxed, carefree, or effortless manner. It took me a little while to get used to this job, but now I could do it standing on my head! You should ask Johnny for help—he could do this level of math standing on his head.

can do something standing on your head

If you can do something standing on your head, you can do it very easily. All the secretaries here can do the job standing on their heads. She has been playing gigs for so long she can do it standing on her head.

See also: can, head, on, something, standing

Collins COBUILD Idioms Dictionary, 3rd ed.

See also:

able to do (something) with (one's) eyes closed
able to do with eyes closed
able to do blindfolded
able to (do something) blindfolded
able to (do something) with (one's) eyes closed
able to do (something) standing on (one's) head
a/the feel of (something)
(I) wouldn't (do something) if I were you
a straw will show which way the wind blows
a crack at (someone or something)

词组	could (do something) standing on (one's) head
释义	could (do something) standing on (one's) head could (do something) standing on (one's) head Is able to do something with very little or no difficulty, or complete or accomplish something in a relaxed, carefree, or effortless manner. It took me a little while to get used to this job, but now I could do it standing on my head! You should ask Johnny for help—he could do this level of math standing on his head. See also: could, head, on, standing Farlex Dictionary of Idioms. can do something standing on your head If you can do something standing on your head, you can do it very easily. All the secretaries here can do the job standing on their heads. She has been playing gigs for so long she can do it standing on her head. See also: can, head, on, something, standing Collins COBUILD Idioms Dictionary, 3rd ed. See also: able to do (something) with (one's) eyes closed able to do with eyes closed able to do blindfolded able to (do something) blindfolded able to (do something) with (one's) eyes closed able to do (something) standing on (one's) head a/the feel of (something) (I) wouldn't (do something) if I were you a straw will show which way the wind blows a crack at (someone or something)
随便看	lead someone by the nose lead (someone or something) against (someone or something else) lead (someone or something) away lead someone up the aisle lead someone up the garden path lead the field lead the life of Reilly lead the life of Riley lead the line lead the pack lead the way lead time lead to lead to believe lead to do lead to (something) lead up lead up to lead with lead with (one's) chin lead with one's chin lead with your chin leaf leaf out leaf through