morning wood
"Morning wood" is a common informal term for an erection upon waking, scientifically known as nocturnal penile tumescence (NPT).
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Definition
B2Human Physiology
(informal, colloquial)An erection experienced upon waking, usually unrelated to sexual thoughts or dreams.
Example
- He noticed he often had morning wood, a sign of normal physiological function.
C1Fire Starting
(dialectal)Kindling used to start a fire in the morning.
Example
- He gathered some morning wood to get the fire going for breakfast.
Similar
Terms that have similar or relatively close meanings to "morning wood":