v.
    - draw into the mouth by contracting the muscles of the lip and mouth to make a partial vacuum. ▸hold (something) in the mouth and draw at it by contracting the lip and cheek muscles. ▸draw in a specified direction by creating a vacuum. ▸(of a pump) make a gurgling sound as a result of drawing air instead of water. 
- 
(usu. suck someone in/into)
 involve (someone) in something without their choosing.
- 
(suck up)
 informal attempt to gain advantage by behaving obsequiously.
- N. Amer. informal be very bad or disagreeable:![]()  the weather here sucks. 
n.
 an act or sound of sucking.
exclam.
 
(
sucks)
 
Brit. informal used to express derision and defiance.
Phrase
  
    - give suck
 archaic suckle.
- suck it up
 N. Amer. informal accept something unpleasant or difficult.
 
  Etymology
  OE sūcan (v.), from an Indo-Eur. imitative root; rel. to soak.