An alternative term for "acronym", used to describe shortened versions of common sayings containing the word "fuck". Not all social settings are appropriate to actually use the word "fuck", but several "fuckronyms" can be slid into social conversations without drawing undue attention.
Examples of fuckronyms include: wtf? (what the fuck?), nfw (no fuckin way), stfu (shut the fuck up), and the one that started it all...fu!
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.