a (slang|chiefly N CA) Intensifier (modifies verbs); to a large extent; totally; very much.
a (slang|chiefly N CA) Intensifier (modifies adjectives); to a large degree; extremely; exceedingly.
! (slang|chiefly N CA)for sure | For sure; totally; hell yeah; used as a strong affirmation of something that was just said, accomplished, or revealed.