noun, noun or participle which takes 'suru', intransitive verb
morning erection; morning wood
Colloquial term for an erection upon waking; often used in casual or vulgar contexts. The medical term is 夜間陰茎勃起.
朝起きたら朝立ちしてた。
I woke up with morning wood.
朝立ちは健康な男性なら普通にあることだ
Morning erections are normal for healthy men.
noun, noun or participle which takes 'suru', intransitive verb
early morning departure
Only when written 朝立ち
Refers to setting out early in the morning, often on a journey. Somewhat literary or old-fashioned; in modern speech 早朝出発 is more common.
旅人は朝立ちして、まだ暗いうちに宿を出た。
The traveler departed early in the morning, leaving the inn while it was still dark.