Hemiboy
Hemiboy is a subset of demigender and hemigender in which one feels that their gender is exactly 50% male and 50% something else. The other 50% may be any other gender or combination of genders.
The feminine equivalent is hemigirl and the non-binary equivalent is heminonbinary.
History
Hemiboy was coined on or before August 17th, 2015.[1]
Flags
The hemiboy flag and an alternate flag were created on August 17th, 2015, by DeviantArt user pride-flags.[1]