Okay, this isn't exactly the right thread, but here are some peeves:

1. The False Dichotomy: "Don't buy X upgrade, just take along 2 oz less water!" or "Just take a dump before you ride; you'll save more weight!"

2. "Ass hatchet" - orignally coined by Jobst Brandt to describe how a leather saddle ridden in the rain develops a ridge that "parts ones' cheeks like a hatchet", this descriptive term is misapplied to any saddle the poster perceives as uncomfortable.