1. adjective - A genre of music which has its origins in the 1960's e.g. "Prog Rock" short for "progressive", referring to complex and shifting musical keys and time signatures.
2. noun - In videogames, "prog" is an abbreviation for "progress" or "progression" and refers to learning fights, figuring out mechanics, obtaining gear, and optimizing strategies.
3. noun - a derisive term for "progressives" or people who identify as left-leaning politically.
1. The Moody Blues is a great prog rock band.
2. Prog on this raid has been slow, but we finally hit the next phase.
3. Progs are not welcome at Proud Boys meet-ups.