An event in a group chat or Discord server where a person sends a large amount of memes at once, or multiple of a meme.
Prepare for this tsunameme I'm about to send.
noun - a battery of the best memes one has found lately
I haven’t texted Spencer in like three days, so I’m gunna mess his world up with a tsunameme
My phone said I had 16 missed texts from Mikel, and I was like “chill, that’s annoying, nothing could be that important” but when I opened them, it was a tsunameme and all was right in the world.