Alien on Facebook

What it signals here

reaction meaning

Expresses surprise or confusion at unusual content since Facebook lacks a dedicated 'confused' reaction

comment use

Boomers may use it literally for UFO/alien interest groups; younger users use it for weird content

boomer interpretation

Often taken literally — actual interest in extraterrestrial life, UFO sightings, or sci-fi content

group use

Common in UFO sighting groups, conspiracy theory pages, and sci-fi fan communities

See it elsewhere