Comforting someone with your crumpet. AKA - Vagina
When someone is sad and feeling blue, a fanny will snuggle up next to you and crumpfit you - someone is crumpfitting you at that moment.
Man gets home from work, says to wife "oh Ive had a hard day today".
Wife says "oh darling - you know what you need? "Crumpfitting".
Wife then proceeds to comfort her man by cuddling him with her vagina.