hard-on
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
An erection of the penis.
Register: slang, vulgar
Where it’s used:
Used
American English
Examples
I'm lying here with a hard-on, it's not even 10:00 yet.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
A desirous arousal based on a fascination or obsession.
Register: slang, vulgar
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “hard-on” mean?
An erection of the penis.
Is “hard-on” formal or informal?
hard-on is generally slang, vulgar.