Never heard this term.

This happens to me at least once a week, and it’s often from some of the account profiles that have similar pics and attitudes in common. #sealioning is an immediate cue to me to walk TF away from the convo. Go bark somewhere else. https://t.co/kQthSdBqwR pic.twitter.com/Cactr5c1xp

— Tenille Lafontaine (@RealTenille) November 16, 2020