Outside of this forum, I've never heard the word used that way.
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Typically definition 1 is the context I hear the word used used in. I suppose definition 2 could work, but the meaning seems vague if applied to a cannabis strain. Definition 3 could work, but it seems rare that someone would say "racy" instead of "pungent".
Definition 4 seems most likely, but definition 3 could also work. Given I've never heard the word used in this context and it seems unclear if definition 3 or 4 was meant, seeking clarification seems reasonable even if I had checked the regular dictionary first...