The term 'Bit of Trail Mix' is a combination of two words: RAISIN and NUT. RAISIN is a six-letter word that refers to a dried grape, while NUT is a three-letter word that refers to a hard-shelled seed or fruit. Together, these two words form a snack mix that typically includes a variety of ingredients such as dried fruits, nuts, and sometimes chocolate. Trail mix is a popular snack for hikers and campers because it is lightweight, easy to transport, and provides a good source of energy.