To reblog — to share someone else's post on your own Tumblr or blog. Rebloguear was the viral mechanism of the Tumblr generation in the 2010s: one reblog could send a poem or GIF around the world in hours. The word still surfaces when Gen Z references its online prehistory.

To keep a seat warm — meaning you're just sitting there doing nothing productive. In Mexico calentar el asiento is what office workers do when they show up but contribute zero.

To print a document or photo from a device. 'Printear' is the casual Hispanicized version of the English 'print' — perfectly understood everywhere, even though language purists might prefer 'imprimir.' In offices and schools across Latin America, you printeas things daily.

A difficult, stubborn person who gives you a hard time and won't budge. In Mexico fregado is used for someone who's a pain to deal with — hardheaded, unpleasant or just relentlessly troublesome.