I am assuming this is the appropriate forum for this suggestion, my apologies if that is incorrect.
Rationale: all three tags serve no clear purpose, and they are misspelled (beastiality instead of bestiality).
actual_beastiality: existing bestiality tag exists for that reason
not_beastiality: not only does this defeat “tag what you see”, but the common use case would likely be similar to blacklisting the existing bestiality tag
surprise_beastiality: I think combinations of existing tags can achieve the same purpose
If not up for deletion, then at the minimum please consider making the spelling right.