What is the meaning of pulling out?

noun

• A method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation.
  • synonyms: coitus interruptus, withdrawal method, withdrawal, onanism

verb

• Move out or away.
  • usage: "The troops pulled out after the cease-fire"
  • synonyms: pull out, get out
• Bring, take, or pull out of a container or from under a cover.
  • usage: "draw a weapon"; "pull out a gun"; "The mugger pulled a knife on his victim"
  • synonyms: draw, pull, pull out, get out, take out
• Remove, usually with some force or effort; also used in an abstract sense.
  • usage: "pull weeds"; "extract a bad tooth"; "take out a splinter"; "extract information from the telegram"
  • synonyms: extract, pull out, pull, pull up, take out, draw out
• Remove oneself from an obligation.
  • usage: "He bowed out when he heard how much work was involved"
  • synonyms: chicken out, back off, pull out, back down, bow out