Clop

[Tina]

To masturbate. Often used by bronies.

[Jason Yan]

Cockslap, which involves your erected penis slapping another female or male in their face. Sometimes used as a threat from older grades to junnis, like a grade nine saying you fucking junni imma clop you. This word is used mostly by Surrey jacks or Members of a sexual party.

[Jessica]

When youre running and your dick balls start bashing together, making a clop sound.

[Britney]

when your dick/ballsack makes a clapping noise on your thigh that only you can hear, unless you ask everyone to be quite and make a humping motion rapidily to generate the clopping noise. Note:This can only be achieve if your wearing loose boxers.

[Raeanne Dimick]

A sound or series of sounds made by a horses hoofs on a hard surface.