真まっ逆さかさま

na-adjective, noun

head over heels; headlong; head first

Describes falling or plunging upside down, often with a sense of tumbling or complete inversion. Can be used literally or figuratively.

See also: 真逆様 (まさかさま)

• 彼かれは階かい段だんから真まっ逆さかさまに落おちた。

  He fell head over heels down the stairs.

• プールに真まっ逆さかさまに飛とび込こんだ。

  I dove head first into the pool.