What does RAD mean?
Radical, cool
Other definitions of RAD:
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How to use the term RAD:
There are no example uses of RAD at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

AYTF
are you there f**ker

TOYA
Thinking Of You All

TSTB
The sooner, the better

IQ
Intelligence Quotient