scream one's head off

idiomatic

(idiomatic) To scream out to one's full capacity.

Japanese Meaning

全力で大声を出して叫ぶ / 思い切り大声で叫びまくる

When one sees a ghost, one might scream one's head off.

幽霊を見たら、人は声が枯れるほど叫んでしまうかもしれない。

Sense（1）

(idiomatic) To scream out to one's full capacity.

screams one's head off

（ present singular third-person ）

screaming one's head off

（ participle present ）

screamed one's head off

（ participle past ）

screamed one's head off

（ past ）