"Don't you remember when we teamed up to tackle the Ghost Ship of Space?"

Back in the day, they got "defeated".

Today, adults would say "the Legion of Super-Heroes get their asses handed to them by the Legion of Super-Pets."

The L337 H4x0r kids would say "omfg d00d th3y PWN3D teh |_3g10|\| cuz they r0xx0rzz!!11!"

In any language, here's a moment the Legion probably wishes they could forget, or at least they'd hope we forgot. From Adventure Comics #364, the Legion gets pwn3d by the Super-Pets (as presented by scans_daily).

Not Ultra Boy's finest moment.

Previously: The Incredible Super-Blog's awesome take on the story.