A group of jellyfish is called a *smack* — that's the most common official collective noun.
But they have a few other names depending on what they're doing:
- *Bloom* — used when there are thousands or millions of jellyfish together, usually because of a sudden population explosion. Scientists use this term the most.
- *Swarm* — same idea as a bloom, just a more general word.
- *Fluther* — an older, less common term.
So you could say "a smack of jellyfish floating by" or "a huge bloom of jellyfish took over the bay" and both would be correct.
Fun fact: Even though they are called a smack, jellyfish aren't actually that social — they don't swim together on purpose like fish do. They mostly just drift together with the ocean currents.
2026-09-15 10:56:00
3
Themanwiththeplan :
Stingfish
2026-09-12 12:53:47
0
Kaden Clark :
smack
2026-09-23 18:52:46
0
11:11 🤍🤞🏼 :
A smack
2026-09-12 12:25:24
2
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