Entry from OED Online

Forms: 19- Chrimble, Crimble. Also with lower-case initial. [Humorous alteration of CHRISTMAS n., perh. reflecting childish speech. Cf. earlier CRIMBO n.] 

    Christmas. Cf. CRIMBO n.
 
  1963 J. LENNON in Beatles Fan Club Recording in New Musical Express 6 Dec. 10/2 Garry Crimble to you, Garry Crimble to you, Garry Bable, Dear Christmas, Happy Birthday, me too! 1987 Just Seventeen 16 Dec. 6/2 Stevie's determined to have a well-wacky Crimble do. 1994 Sun Zoom Spark Dec. 22/3 Couldn't we just shut him in the attic and let him out for 12 days around Crimble along with the baubles and tinsel. 2002 Observer 6 Jan. (Business section) 7/8 As..only 300 digital radio sets were in the shops this Crimble, the company's performance on the stock market shouldn't really be a surprise.