Feral
Etymology
From Latin fera, “wild animal,” by way of the standard English adjective for a domesticated creature returned to the wild. Internet usage in the 2010s and 2020s repurposed it for people “going feral” — losing their composure with delight — often about fandom, hunger, or overexcitement, and typically as praise rather than insult.
adjective · /FAIR-uhl/
Behaving in a wild, unrestrained, gleefully out-of-control way — often said admiringly.
What it names
It names a self-aware abandon: dropping composure on purpose and enjoying it. Where the literal word describes an animal gone wild, the slang sense is usually affectionate — celebrating someone who has stopped performing dignity and given in to unfiltered enthusiasm or chaos.
Example
The moment the band came onstage the whole crowd went feral.
Related idea
Unlike unhinged, which suggests something has come loose, feral is bodily and instinctual — wildness let out, not sanity slipping.