The phrase "apple polish" is defined as exaggerated flattery or praise. Synonyms of this phrase include brown-nosing, sucking up, bootlicking, toadyism, fawning, and groveling. These terms all refer to insincere or over the top compliments given to someone in an attempt to win their favor or gain an advantage. Other related words include ass-kissing, ingratiating, adulation, and obsequiousness. It's important to note that while some level of praise and recognition is important in social and professional settings, using insincere or false flattery can come across as manipulative and ultimately harm one's reputation.