The term 'be sulky' can be described by two crossword solutions: MOPE and POUT. Moping is a behavior characterized by a lack of energy, enthusiasm, and motivation. It is often accompanied by a feeling of sadness or depression. Pouting is a facial expression that conveys displeasure or unhappiness. It is usually done in response to something that has been said or done. Both moping and pouting are forms of sulking, which is a passive-aggressive behavior used to express dissatisfaction or displeasure.