"hawkers" - persistently they sell hammocks, jewelry, sweets etc. We say "no gracias" frequently.
"Corona with lime" - I always thought Sol was the Mexican lager and Corona was the immitation. Turns out they are both quite Mexican. It is sometimes served with a small plate of limes & salt, although I´ve not quite worked out the salt bit yet..
"cliche American tourists" - esp round the costal regions.
"cold showers" - some lodgings had cold water only..
"book exchanges" - we discovered them in Zihuatanejo.
"bandidos" - Peurto Escondido, first and last time I heard the word.
"Maya" - we visited lots of Mayan sites
"Mosquitos" - they like Rob lots.
"Quesidillas" - plain cheese ones are like a Mexican version of "cheese on a plate"
"Burritos" - don´t seem to be eaten in Mexico
"audio books" - great for long bus journeys where there is no light and so unable to read. "Last Chance to See" narrated by Douglas Adams & Going Postal by Terry Prachett were both fantastic.
"tree bases painted white" - I don´t know why but they do this to lots of trees in Mexico, maybe cus it looks nice.
"proper salsa" - salsa (the edible kind) in Mexico is different everywhere you go.. and certainly different to the stuff we get in the uk.
"the trotts" - say no more.
"fragalino" - absolutely gorgeous fresh fruit strawberry milkshakes
"inverse cash machines" - they spit the money out first, then your card.
"iguanas" - I was shocked the first time I saw an iguana wandering round near the swimming pool
"colourful fishes" - Isla Mujeres was my first snorkelling adventure