A really big, hairy, or unsightly areola. Should be atypical enough to inspire fear and/or quiet wonder when shown to a small child or animal.
Madison Square Park in the summer is like a petri dish for scaryolas.
by Heydadsoup May 30, 2013
"And God stated that Scary-olas are Mother Nature's twisted sense of humor"
by Kevin Hagar The Horrible December 23, 2008