lift so or sth up meaning

• [American slang]
  to raise someone or something.
    I helped lift him up and put him on the stretcher.
    Please lift up Tommy.

• lift so or sth down:    [American slang]to ...
• lift sth from so or sth:    [American slang]to ...
• lift sth off (of) so or sth:    [American slang]to ...