The phrase "four-leaf clover" means a rare type of clover plant that has four leaves instead of the usual three. It is considered lucky or special because finding one is quite uncommon. Full definition
Post a four - leaf clover on Facebook, Instagram, Twitter or Pinterest letting people know you're gearing up for St. Patrick's Day. (datingadvice.com)
Visually setting the Quadrifoglio apart from lesser Stelvios are hand - painted four - leaf clover badges on the front quarter panels, rear spoiler, side sills and aforementioned wheels. (cnet.com)
That is, incidentally, the four - leaf clover emblem worn by Alfas since the 1923 Targa Florio. (roadandtrack.com)