standing on one's head

standing on (one's) head

With very little or no difficulty; 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 does this level of math standing on his head.See also: head, on, standing

standing on one's head

see under do blindfolded. See also: head, on, standing