I think we gotta charge per slap, in order to cover the overhead, like assault charges and what not...
You'll have to talk to Teej to be sure, but I think each hit (literally, "hit") can include a message of five words or less. Syllable slaps should come as a combo deal... like:
I'm *slap*
sick *slap*
and *slap*
tired *slap*
of *slap*
your *slap*
She *slap*
nan *slap*
i *slap*
gins *slap*