Related:

• I think he's a few bytes short of a checksum.
• I think he's a few bars short of a finished symphony.
• I think he's a few channels short of Basic Cable.
• I think he's a few croutons short of a garden salad.
• I think he's a few strings short of a violin section.
• I think he's a few pipes short of a church organ.
• I don't need no arms around me... I don't need no drugs to calm me.
  .. I have seen the writing on the wall. Don't think I need anything at all....
• I think my family tree is a few branches short!
• He's a few cards short of a deck.