The term 'itty bit' is a colloquial phrase used to describe a very small amount of something. The crossword solutions for this term are JOT (3 letters), TAD (3 letters), IOTA (4 letters), and SKOSH (5 letters). JOT is a verb meaning to write or scribble quickly, while TAD is a noun referring to a small amount. IOTA is a noun meaning a very small amount, and SKOSH is another noun meaning a tiny bit. All of these words can be used to describe a very small amount of something.