Top Definition
hellafast is pretty damned quick. It's not as fast as stupidfast, but it'll still smoke things that are just "fast". e.g., ASDL is hellafast, compared to a 56K modem.
Man, this rig is hellafast. It beats the hell outta my dual celly rig.
by djv January 20, 2003
1 more definition
2 Words related to hellafast
the speed at wich Mr. T's 1982 custom AMC van travels at.
Mr. T's van is "hellafast"
by Vegas March 24, 2003

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