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!