Grabs in general? Peach's umbrella itself? Any grabs that aren't technically a normal grab (DK's and Bowser's iirc)? Warp star? Star KO? Hitting a home run on someone with the Home Run Bat? Touching a spike in Rumble Falls? Hover boots 3.0? Shyguys in karts? Karts with shyguys driving them? Shyguys occupying the same space as a racing kart?
SoF has already answered this, but typing ME3 into your prefered search engine will usually give you the answers to things like this as well. I didn't know what it was either, but that's what I did, and it worked.
2. Guesses: Shadow the Hedgehog Chaos Control Celebi Dialga Spear Pillar The stage hazards in Spear Pillar (if I remember correctly, there were three of them).
At over 100 hours of play time before I finally reached HR2, I am quite possibly the slowest Monster Hunter in existence. Veloc - I prey on the strong.