The term 'be crabby' can be defined as being irritable or bad-tempered. The crossword solutions for this term are SIDLE (5 letters), GRIPE (5 letters), and FUSS (4 letters). SIDLE means to move sideways or obliquely, which could be used to describe someone who is crabby and trying to avoid a situation. GRIPE means to complain or express dissatisfaction, which could be used to describe someone who is crabby and expressing their displeasure. FUSS means to make a commotion or FUSS over something, which could be used to describe someone who is crabby and making a big deal out of something.