Definitions of lame:

• noun:   a fabric interwoven with threads of metal

  Example: "She wore a gold lame dress"

• noun:   someone who doesn't understand what is going on
• verb:   deprive of the use of a limb, especially a leg
• adjective:   (of horses) disabled in the feet or legs
• adjective:   pathetically lacking in force or effectiveness

  Example: "A lame argument"

• adjective:   disabled in the feet or legs
• name:  A surname (very rare: popularity rank in the U.S.: #35385)