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1. verb To habitually offer flattery in the hope of gaining favor; to behave sycophantically. Stop sucking up just to try to get an A. Just study like everyone else.
2. noun A person who habitually offers flattery in the hope of gaining favor; a sycophant. In this usage, the phrase is usually hyphenated. Billy is always complimenting the teacher on her hair. What a suck-up.
suck something up
to pick something up by suction, as with a vacuum cleaner, or through a straw. Will this vacuum suck all this dirt up? The vacuum cleaner sucked up all the dirt.
1. To draw or pull something in by or as if by suction: I sucked up the soda through a straw. There was a lot of dirt on the floor, but the vacuum cleaner sucked it up quickly.
2. Slang To suppress some pain or emotion: I thought that job was beneath me, but I really needed the money, so I sucked up my pride and accepted it. I know the pain you're feeling is intense, but you have to suck it up until we get to the hospital!
3. Slang suck up to To behave obsequiously; fawn: I was unable to ask any good questions in class without my peers saying that I was sucking up to the teacher.