What the fuck's it matter? I googled a definition on the off chance that may, just maybe, I'd mixed it up, checked a couple of the results, and copied over one of them.

Nope, turns out I knew what the word means. Russia's war on Ukraine is imperialist in nature. They are not in Ukraine for any reason other than their own selfish interests. They want to conquer and annex Ukraine for the express purpose of expansion and economic benefit. Stuff like the warm water ports that Russian trolls have been caught red handed going on about on other social media.