would it be possible to include the terms I wish to restrict in a file

This is trivially done with Tie::File:

$ cat banned_words 
pr0n
hard
visit
$ perl
use Tie::File;
tie my @banned_words, 'Tie::File', 'banned_words' or die "tie: $!";
print "banned words: @banned_words\n";
untie @banned_words;
__END__
banned words: pr0n hard visit
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