I don't see the word Comb connected to anything in crypto.
Comb as in combing hair, but also maybe Honeycomb (but that has no teeth...)?
Comb is a well-known abbreviation for
combinations. Look at how often that term is used in this thread. Also note another math term that is found in this thread that also has an abbreviation that is hair related:
permutations (i.e. Perm).