Extremely extreme, and/or viciously intense.
NOTE: “
Whippin’” is technically an informal pronunciation of the word “whipping”, but no way would anyone ever say whipping when they meant
whippin’. That'd just sound silly. Plus, the word whippin’ is only used when one is excited as all heck, and in that
state it's nigh impossible to say it with an ‘ing’ at the end.
“Whoa, you
musta been so passed out. Cuz dude, that last band was like
whippin’ loud!”
“That chick was gnarly-fast. Did you see her
calves? They were whippin’ huge!