suck / sək/ • v. 1. [tr.] draw into the mouth by contracting the muscles of the lip and mouth to make a partial vacuum: they suck mint juleps through straws. ∎  hold (something) in the mouth and draw at it by contracting the lip and cheek muscles: she sucked a mint | [intr.] the child sucked on her thumb. ∎  draw milk, juice, or other fluid from (something) into the mouth or by suction: she sucked each segment of the orange carefully. ∎  [tr.] draw in a specified direction by creating a vacuum: he was sucked under the surface of the river. ∎ fig. involve (someone) in something without their choosing: I didn't want to be sucked into the role of dutiful daughter. ∎  [intr.] (of a pump) make a gurgling sound as a result of drawing air.2. [intr.] inf. be very bad, disagreeable, or disgusting: I love your country, but the weather sucks.• n. an act of sucking something. ∎  the sound made by water retreating and drawing at something: the soft suck of the sea against the sand.PHRASES: give suck archaic give milk from the breast or teat; suckle.suck someone dry exhaust someone's physical, material, or emotional resources.suck someone in cheat or deceive someone: we were sucked in by his charm and good looks.suck someone off vulgar slang perform fellatio on someone.suck it up inf. accept a hardship.PHRASAL VERBS: suck up inf. behave obsequiously, esp. for one's own advantage: he has risen to where he is mainly by sucking up to the president.