What's your goat?
In the CrossFit world, a "goat" is a movement or skill that you either a) can't do for diddly, or b) hate with a passion usually reserved for that guy in college who never asked you out, or the girl who wound up dating him.
My goat: gymnastics skills that require lower abdominal strength. I don't have the strength, and thus I HATE attempting the movements (skin the cat, toes to bar, knees to elbows), because really - who likes to feel inadequate?
So, saddle on up to the bar and confess your goat.