back-combed hair; teased hair; puffed-up hair
Refers to hair that has been brushed or combed against its natural direction to create volume or a fluffy appearance. Common in hairstyling contexts.
The hairdresser back-combed the hair to add volume.
When you tease the hair, it looks fluffy.
Compound of 逆 (saka, 'reverse, opposite') and 毛 (ke, 'hair'), literally 'reverse hair'. The reading さかげ is a standard kun'yomi combination.