
Crash out
Physical Exhaustion
Emphasizes the speaker's high level of tiredness when they decide to sleep.

Walking all day, I could crash out anywhere.
Suddenness
Indicates that the sleep is often unexpected and happens suddenly.

He crashed out mid-conversation, utterly drained.
Casual Context
Commonly used in informal settings among friends and family.

After the party, we all crashed out in the living room.
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