Sit Out Meaning

(wrestling) To escape a hold while face down by swinging one's legs around into the sitting position.

Example:   I don't like this tune, and I'm rather tired, so I think I'll just sit out.
  I don't like this song and I'm really tired, so I think I'll just sit it out.
2012 June 19, Phil McNulty, “England 1-0 Ukraine”[1], BBC Sport:
  England manager Roy Hodgson instantly restored Rooney after a two-match suspension in place of Andy Carroll with orders to make a belated mark on the campaign after sitting out the draw against France and victory against Sweden.