headlong; head over heels; upside down
Describes falling or tumbling in a headfirst or inverted manner. Often used with verbs like 落ちる (to fall) or 転ぶ (to tumble).
See also: 真っ逆さま
He fell headlong down the stairs.
I fell head over heels from the tree and got injured.
Standard kanji spelling.
Alternate spelling with さま in kana.
Compound of 真 (ma, 'true') + 逆様 (sakasama, 'inverted, upside down'). The reading まさかさま is a straightforward combination.