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.

Common Names:

Name	Pronounced	Usage
Joost	YO:ST	Dutch
Colombo	-	Italian
Suniti	-	Indian, Hindi
Thurston	['θə:stən]
Oddr	-	Ancient Scandinavian
Kassandros	-	Ancient Greek