dicky-licker
vulgar slang One who performs fellatio. Often used toward men in a disdainful manner as a homophobic slur.
ass-licker
vulgar slang One who habitually acts in a subservient, flattering, or fawning manner, especially to gain approval, attention, or support; a sycophant. Tim is such an obvious ass-licker, always complementing the boss on her ideas and saying yes to anything she suggests.