Top Definition
A semi-erect penis. The word has its origins from the equestrian world.
I always awake with a clop-on.
Bessie had a raging clop-on as I brushed him down.
by clop-on April 04, 2009
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.