Definition: The incoherent rage-flail triggered when an absurdly obscure organism derails your study session. Typically hits during late-night taxonomy deep dives where some single-species phylum (looking at you, Micrognathozoa) exists purely to ruin mnemonics and fracture your sanity.
Manifests as violently crumpled flashcards, spitting coffee at textbooks, and loudly wishing extinction upon a creature you discovered 17 minutes ago. Often involves furious googling to confirm evolution just hates you personally.
Example:
Staring at Micrognathozoa in my notes at 2 AM, incoherent rage-flail hit; flashcards flew as I cursed this obscure organism ruining my phylogeny tree.
Discovering Kinorhyncha shattered my carefully crafted mnemonic, triggering a late-night fury where I spilled coffee wishing extinction on the single-species phylum.