Clownbombing
Derived from photobombing, clownbombing means to respond to any social-media discussion by posting an unsettling photograph of a clown, with no text or caption whatsoever. When someone responds to your clownbomb, the only response should be a different clownbomb. This repeats.
She spent sixteen days clownbombing every Tweet posted by Bill O'Reilly.
Clownbomb
To have sexual intercourse, but not want to call it 'sex'.
"Yeah we went back to my place and I clownbombed her all night long." said Jerry.