Similar to "brown nosing" someone influential for your own personal gain, except you're sucking up to someone who can't do you any good because they lack intelligence, credentials and merit.
"Look at that dumb fool clown nosing the school janitor."
by Happy Sam August 14, 2006
When a woman is on her period and sits on a man's face leaving him with a red nose.
Julie and Greg were clown nosing.
by Chilidoggin January 09, 2008