- "Harder" goes off of the slang term "to go hard" which is usually to describe a a person or event or thing that was fun, pleasing, or gave off a positive vibe to the person describing it.
Harder
adjective
to describe someone or something to be better, more appealing, etc. than something/someone else
Source : "Who go harder, Waka or Future?" (Conversation between myself and friend about which rapper was better (Waka Flocka or Future).
Last modified: 14 December 2013