Dickens spends some time on Cruncher's hair, which he describes as "more like the top of a strongly spiked wall than a head of hair." He also flat-out describes Cruncher's hair as "spiky"—so much so that it could "tear the [bed]sheets to ribbons." (It's possible Dickens named him Cruncher to draw more emphasis to his hair, since it seems to be his most striking feature.) In a humorous description that encapsulates Cruncher's general appearance, Dickens says, "whereas he often came home after banking hours with clean boots, he often got up the next morning to find the same boots covered with clay." This suggests his appearance was continually bedraggled, but he never knew how he got that way. Dickens also describes him as grim and red-eyed. So overall, his appearance is unkempt, which one could read as reflecting his state of mind.