From Longman Dictionary of Contemporary Englishheadstandhead‧stand /ˈhedstænd/ noun [countable] 
DSOJUMPa position in which you turn your body upside down, with your head and hands on the floor and your legs and feet in the air Can you do a headstand?
DSOJUMPa position in which you turn your body upside down, with your head and hands on the floor and your legs and feet in the air Can you do a headstand?Examples from the Corpus
headstand• One night Helen Duhon and Katherine decided to see who could hold a headstand the longest.• So I tried a headstand during rehearsal.do a headstand• Black admitted that he was unable to do a headstand. 