recreational vehicle - n. a large vehicle that often has a bathroom, kitchen, and beds for use during travel and camping

kitschy - adj. describing things (such as movies or works of art) that are of low quality and that many people find amusing and enjoyable

diner - n. a small, informal, and inexpensive restaurant

cozy - adj. small, comfortable, and warm

fuel up - phrasal verb/idiomatic. (in this usage) to eat

souvenir - n. something that is kept as a reminder of a place you have visited, an event you have been to, etc.